Avatar

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- The Avatar must be compassionate towards all people, and the only way to do that is to live with them. The Avatar must experience sadness, anger, joy, and happiness. By feeling all these emotions, it helps you understand how precious human life is, so you will do anything to protect it.

The Avatar, formed initially when Wan permanently fused with Raava during the Harmonic Convergence of 9,829 BG, is the human embodiment of light and peace through the connection with the Avatar Spirit. As the only physical being with the ability to bend all four elements, it is considered the Avatar's duty to master the four bending arts and use that power to keep balance among the four nations of the world, as well as between mankind and spirits. Upon death, the Avatar Spirit is reincarnated into the next nation, dictated by the cyclic order: fire, air, water, and earth. Mirroring the order in which the first Avatar, Wan, learned the elements, this is also the traditional order in which any one incarnation is to master the elements, beginning with the bending art of the Avatar's birth nation. The reincarnation cycle can only be broken if the Avatar is killed while in the Avatar State, Raava is removed from the Avatar and destroyed, or the Avatar Spirit is compromised by a spiritual infection.

As part spirit, the Avatar possesses an innate connection to the Spirit World and used it to be the bridge between the two worlds in order to keep peace between them and ensure harmony. After the Harmonic Convergence in 171 AG, however, Avatar Korra left the spirit portals open and renounced her role as bridge between the two worlds to let humans and spirits live together in harmony. The Avatar is also capable of recalling events from past lives by connecting with the memories of a previous Avatar; however, this connection was severed during Avatar Korra's time.

Each nation has a method of recognizing the new Avatar. Among the Air Nomads, this involved presenting infants with a selection of toys and watching for a child that selected the exact four that had belonged to past Avatars, called the Avatar relics. Traditionally, the child is told of his identity as the Avatar on his sixteenth birthday. However, Avatar Aang was told at age twelve, in fear of a war starting due to the Fire Nation's growing aggression, and Korra was discovered as the Avatar when she was just four years old: she exhibited bending abilities beyond her native waterbending without formal training.

The Avatar also possesses the ability to bend energy itself, although very few Avatars have learned this technique, and even fewer have used it. Avatar Aang learned it from the last living lion turtle and used it to remove Phoenix King Ozai's firebending, ending the Hundred Year War. He later used it to end Yakone's reign of terror in Republic City by stripping him of his waterbending. Korra was also taught this ability after connecting with Aang when she lost her bending. Aang used this ability to restore her bending and she likewise did the same for Lin Beifong and many other victims of Amon's unique technique.

Upon mastering control of the Avatar State, after having learned to bend the four elements, an Avatar is referred to as "fully realized".

History
"We are bonded forever."

Before Wan became the first Avatar, he was banished into the Spirit Wilds from the fire lion turtle after he had stolen the ability of firebending. Over the course of the two years following his banishment, Wan befriended the spirits, honed his firebending skills, and decided to travel the world to find the other lion turtle cities. During his journey, Wan encountered Raava, the spirit of light and peace, fighting against Vaatu, the spirit of darkness and chaos. Unaware of Vaatu's identity at the time, Wan was tricked by the dark spirit into separating him from Raava, releasing darkness and chaos into the world. Wishing to fix his mistake, Wan journeyed with Raava in search of other lion turtles for the purpose of gaining the elements of air, water, and earth and learning how to master them. About a year later, during their fight against Vaatu at the time of the Harmonic Convergence, Wan merged permanently with Raava, becoming the first Avatar and gaining the ability to bend all four elements at once. After he sealed away the dark spirit in the Tree of Time, Wan oversaw the departure of the spirits to their own world and closed the two portals to the Spirit World, so that no human would be able to physically travel there and risk Vaatu's escape. Wan took on the task of being the bridge between the two worlds, maintaining balance and peace. Years later, Raava assured a dying Wan that they would be together throughout all his lifetimes, heralding the beginning of the Avatar Cycle and ensuring the continuation of the Avatar's role as peacekeeper of both worlds.



The Avatar Cycle continued for ten thousand years, until the next Harmonic Convergence, when Avatar Korra battled Unalaq, who attempted to create a new world under Vaatu's influence by fusing with the spirit to become the Dark Avatar. During the battle, Vaatu was able to reach out of Unalaq and rip Raava out of Korra's body. Unalaq destroyed the light spirit, which severed Korra's connection to her past lives and ended the Avatar Cycle. As a means of connecting with the cosmic energy of the universe, Korra meditated in the Tree of Time and was able to bend her own energy to release an astral projection of herself to battle Unalaq. With help from Jinora, who sped up Raava's growth within Vaatu, Korra managed to extract the light spirit from her dark counterpart and defeat Unalaq with his own pacification technique, purifying and dissipating the Dark Avatar. Returning to the Spirit World, Korra and Raava used the spiritual energy from the overlap of the spirit portals to fuse, seconds before the end of Harmonic Convergence. Although her Avatar Spirit had returned to her, Korra could no longer connect with her past lives. After deciding to keep the spirit portals open, Korra declared that the Avatar would no longer be the bridge between worlds, but she would continue to use Raava's light spirit to guide the world toward peace.

Avatar Cycle
"Don't worry. We will be together for all of your lifetimes, and we will never give up."

The Avatar Cycle is based on the passage of the four seasons, which coincides with the order in which Wan first learned the elements; fire related to summer, air to autumn, water to winter, and earth to spring.

When an Avatar dies, the next Avatar will be born into the next nation in the Avatar Cycle. For example, Avatar Yangchen, an Air Nomad, was reincarnated as Avatar Kuruk from the Northern Water Tribe, followed by Avatar Kyoshi from the Earth Kingdom, and Avatar Roku from the Fire Nation.

The Avatar Cycle also determines the order in which each Avatar must learn the four bending disciplines. The nation into which the Avatar is born identifies the first element that is to be mastered, often prior to the bender being revealed as the Avatar. For instance, an Avatar born into the Water Tribes first learns waterbending, before attempting to master the three remaining bending disciplines in the order of the cycle; earthbending, firebending, and finally airbending. Due to his unique situation, however, Avatar Aang tried to learn fire as his second element under the tutelage of Jeong Jeong, who originally objected because of the cycle. Aang did learn to create fire, but he did not have the spiritual maturity to control it well enough, and after Jeong Jeong's camp was attacked by Zhao, Aang's firebending training ended. He eventually learned to bend the element under Zuko's tutelage, after learning the other elements in their proper sequence.

Each Avatar has a particular element with which a low affinity is established, dictated by the personality of that Avatar. This element can be difficult to learn, sometimes proving impossible to control until faced with a situation in which the Avatar is forced to reach within and manifest the power. Although it is often the opposing element to the one of the Avatar's birth nation, this is not always the case. Avatar Roku found mastering waterbending particularly difficult, and earthbending was difficult for Avatar Aang due his predisposition to indirectly engage in combat and evade problems as often as possible. Despite being a native waterbender, Korra actually favored her opposite element and instead found mastering airbending the most challenging due to her brash and direct nature, contrary to airbending's philosophy of contemplation, measured action, and avoidance of conflict.

Known Avatars


The known Avatars in the order of current to oldest are: 153 AG - present 12 BG - 153 AG 82 BG - 12 BG 312 BG - 82 BG c. 345 - 312 BG Unknown - c. 345 BG Years unknown c. 9,829 BG (Beginning of the Avatar Cycle and the Era of the Avatar)
 * Korra (Water Tribe, Southern Water Tribe)
 * Aang (Air Nomads, Southern Air Temple)
 * Roku (Fire Nation, Roku's island)
 * Kyoshi (Earth Kingdom, now Kyoshi Island)
 * Kuruk (Water Tribe, Northern Water Tribe)
 * Yangchen (Air Nomads, Western Air Temple)
 * Unnamed fire Avatar (Fire Nation)
 * Wan (Fire lion turtle)

Simultaneous bending


The Avatar is capable of bending more than one element simultaneously. Avatar Aang first demonstrated this ability while stranded in the desert, when he bent water from a cloud into Katara's water pouch while flying with airbending at the same time, and again in Ba Sing Se when he used his earthbending to recreate a zoo while traveling on the air scooter made by his airbending.

During his battle with Ozai, Aang used all four elements while in the Avatar State to make himself nearly invincible and used the elements in a highly destructive barrage of attacks. He first used his airbending to create a spherical shield around himself, before utilizing the other bending arts to surround himself with elemental rings of rotating flames, rocks, and water. The compression of the elements provided Aang with materials for bending all four elements without sacrificing too much agility and speed, thus making this an extremely dangerous attack both defensively and offensively. The elemental sphere is also used to subdue enemies, especially strong spirits, such as Vaatu.

Past lives
Due to the connection with the Avatar Spirit, the Avatar can call on past lives for wisdom and guidance.

Possession
A previous incarnation of the Avatar can manifest through the current Avatar by possessing the body of the current incarnation. The summoned past Avatar will temporarily replace the appearance and abilities of the current incarnation.

Projection
Projection allows the current Avatar to call forth an apparition of a previous incarnation, making a direct conversation possible.

Memory connection
The Avatar can also recall memories from a past life. This can be done directly through deliberate meditation in order to connect with a specific Avatar, as demonstrated when Korra meditated in order to connect to Aang and relive Yakone's trial. This can also be done subconsciously when in the presence of people or objects that were important to a previous Avatar, exemplified when Aang recognized Roku upon seeing his statue, despite not knowing what he looked like, or when Korra recognized Wan's teapot as her own and Iroh as a friend, even though she had never seen either.

Avatar State
"The Avatar State is a defense mechanism, designed to empower you with the skills and knowledge of all the past Avatars. The glow is the combination of all your past lives, focusing their energy through your body. In the Avatar State, you are at your most powerful, but you are also at your most vulnerable. If you are killed in the Avatar State, the reincarnation cycle will be broken and the Avatar will cease to exist."



The strongest and most powerful ability that the Avatar can invoke is the Avatar State. It was created when Wan permanently bonded with Raava by touching the energy coming through the spirit portal during the Harmonic Convergence in 9,829 BG. It allows the Avatar to channel vast cosmic energies and the knowledge of previous Avatars, allowing for the ability to perform especially powerful and extraordinary bending feats. The Avatar may unconsciously enter the State in response to perception of mortal danger, utilizing the State as a defense mechanism, or emotional distress. While in the State, the Avatar has access to bending techniques that may have not yet been learned, but has no conscious control over the resulting actions, which can cause great collateral damage. An Avatar with full mastery of the Avatar State has conscious control over the State and can enter and exit it at will. The eyes of an Avatar with complete mastery will glow momentarily, rather than continuously. It was by entering the Avatar State reflexively that Aang was able to freeze himself and Appa inside an iceberg for a hundred years by using a combination of airbending and waterbending. He did not physically age at all during the century, as he was in suspended animation, but it took a great physical toll on his body after being in the Avatar State for such an extended period of time.

While in the Avatar State, the Avatar's eyes glow, as do any markings following chi paths along the body, such as Air Nomad tattoos; however, if the body has received an injury deeper than the tattoos, that specific area will not glow in the State. The white glow is the combination of all the Avatar's past lives, focusing their energy through a single body. When Aang spoke in the Avatar State, his voice encompassed a combination of several different voices at once. When Korra spoke in the Avatar State, her voice was simultaneously encompassed with Raava's.



It is possible for an Avatar to control the Avatar State, as Aang, Roku, Kyoshi, Kuruk, Yangchen, and the unnamed Fire Nation Avatar have demonstrated in numerous flashbacks, but this requires great spiritual discipline and concentration. Guru Pathik attempted to teach Aang to control the Avatar State by helping him clear his chakras, but Aang could not let go of Katara in exchange for cosmic power. Fire Sage Kaja informed Roku to clear his mind, but Roku found emptying his mind of thoughts to be quite challenging and was initially unable to do so. More often, the Avatar State is activated by danger or emotional turmoil. Aang inadvertently entered the Avatar State when he discovered that his friend and teacher, Monk Gyatso, was killed by comet-enhanced Fire Nation soldiers. Aang also entered the Avatar State when General Fong placed Katara in danger by sinking her into the ground with earthbending. When in complete control of the Avatar State, an Avatar's eyes glow momentarily, rather than continuously.



It is possible for an Avatar to channel a specific previous incarnation while in the Avatar State. When this happens, the Avatar briefly takes on the appearance and voice of that previous incarnation. Aang did this on several occasions, channeling Roku twice, and Kyoshi once. The appearance of these incarnations seems to vary as Roku always appeared as an old man while all the other Avatar incarnations appeared youthful and in their prime. It is unlikely the age of the Avatar's death is the deciding factor in their appearance since Avatar Kyoshi lived for 230 years and would not have kept a young appearance at that time. It is possible that those in the Spirit World manifest visually as they see themselves and not as they currently are. Aang saw himself garbed in Air Nomad attire and with a shaved head within the Spirit World, even when he was wearing a Fire Nation outfit in the physical world and had hair.

Entering the Avatar State allows the Avatar to nullify the effects of bloodbending, as demonstrated by Aang when he dispelled Yakone's hold on him.

Ways the Avatar State works
There seems to be two distinct ways to how the Avatar State works:

Continuous
When the State works continuously, the Avatar's eyes, and tattoos in the case of an Air Nomad Avatar, glow white constantly, and the spirits of the past Avatars actively channel their energy, skills, and knowledge through the body of the current Avatar, heavily augmenting the current incarnation's bending abilities.

The State works this way almost exclusively when it is triggered as an instinctive, unconscious reaction, a 'defense mechanism' for when an Avatar's physical capabilities would be insufficient to confront the current threat, or in situations of extreme emotion, specifically rage and sorrow. So it may be more accurate to describe the State being used this way as 'reflexively' rather than 'continuously'. When the State is triggered this way, the combined spirits of the past lives of the current Avatar may take control of the Avatar's body and voice, thus the current Avatar has little to no control over the performed actions and may retain little to no memory of what happened, though this is not always the case.

Aang appeared to use the State this way against Fire Lord Ozai after the scar on his back was forced against a rock unlocking his final chakra. Just as Guru Pathik had said, this event led to Aang being able to control the State himself, and unlike previous times where he entered the State, he was not physically exhausted.

Non-continuous
When the State is used non-continuously, the Avatar's eyes, and tattoos in the case of an Air Nomad Avatar, glow momentarily, and during that time the current Avatar stores the knowledge and energy needed so that it can be released once exiting the State, taking only the power needed for a specific task. This reduces the danger of being killed in the Avatar State and enables a more willful, controlled use of the Avatar State's power. This can only be done by an Avatar who has mastered the State as it is a conscious use rather than an instinctual response. Mastery of this technique is part of what distinguishes an Avatar as "fully realized".

Spiritual link-up
The Avatar State also allows an Avatar to join with certain spirits. This was demonstrated when Aang entered the Avatar State in order to aid the frantic Ocean Spirit. Both Aang in his Avatar State and the Ocean Spirit combined their abilities to defend the Northern Water Tribe after all waterbenders were rendered defenseless.

Weakness
While the Avatar is all but invincible in the Avatar State, having access to the bending experiences of all the past lives, there is one grave weakness: while in effect, the Avatar Spirit can be harmed. If the Avatar were to be killed while in the Avatar State, the cycle would break and the Avatar would cease to exist.



Aang was mortally wounded by a lightning strike from Azula while in the Avatar State. As a result, his connection with the Avatar Spirit was jeopardized, resulting in the Avatar Spirit's fall from the plane of existence. Katara was able to use the spirit water she received from Pakku to revive Aang and consequently the Avatar Spirit. The strain of the revival caused Aang to slip into a coma for several weeks, and during that time, he managed to retain his connection to the Avatar Spirit by meeting with the four most recent past lives. However, it took longer for his connection to his past lives to be completely restored.

Another downside to the Avatar State is the considerable mental strain it can cause to less experienced Avatars. Prior to his tutelage under Guru Pathik, Aang would often leave the Avatar State feeling horrified at what he had done under its influence. Furthermore, use of the State, at least in extraordinary circumstances, can place such a large physical strain on an Avatar's body such that their life span can be affected; thus, Aang's one hundred-year time in the iceberg contributed greatly to his eventual death at sixty-six years of age biologically and 166 years chronologically.

Wan

 * About ten thousand years before Korra's time, Wan created the Avatar State by bonding with Raava when he touched the geyser of energy from the Southern spirit portal during the Harmonic Convergence. He used this newfound power to defeat Vaatu and restore balance to the world.
 * At some point, Wan entered the Avatar State when he intervened in a war between clashing armies from three nations with simultaneous bending.

Kyoshi

 * Kyoshi entered the Avatar State in her battle with Chin the Conqueror. Masterfully, she used the non-continuous Avatar State to split her homeland from the mainland; by using her earthbending to break apart the peninsula, firebending to summon lava from the Earth's crust, and airbending to push the mass of land out to sea, she created Kyoshi Island.

Roku

 * Roku entered the Avatar State on three known occasions. The first was during the winter solstice at the Fire Temple; while learning how to enter the State, he became trapped in it, consequently destroying the temple. This was his only known continuous use. The second time was non-continuous in a brief fight with Fire Lord Sozin, and the last known time was in an attempt to stop a volcanic eruption that threatened to destroy his home island.

Before 99 AG

 * Aang entered the Avatar State to save himself and Appa from their fall into the ocean. Both were sealed into an ice encrusted air pocket that eventually froze into an iceberg. Aang would remain in the State until he was released from the iceberg around one hundred years later, hinting at the incredible power available to the Avatar.

Winter 99 AG

 * Aang entered the Avatar State to escape another fall into the ocean and to stop Zuko. He waterbent a water spout in the form of a twister.
 * Aang later entered the Avatar State after witnessing the skeleton of his former mentor Monk Gyatso. In his anguished-induced state, he generated hurricane-force winds. In this event, it is shown that depictions of previous Avatars (such as sculptures or murals) may react to the Avatar State, even when far away, glowing in the same manner that the Avatar in the image would.
 * When Aang met Avatar Roku in the fire temple, Roku helped him and friends escape by directly taking over Aang's body and activating the volcano underneath the temple.
 * Aang almost entered the Avatar State while telling Katara that Monk Gyatso and he were to be separated.
 * Aang entered the State after saving Sokka and a fisherman, rounding up everyone that fell into the ocean and pulling them out of the water into the calmness of the storm's eye.
 * During the Siege of the North, Aang combined the Avatar State's power with the spirit of the Ocean, La, after all waterbenders were rendered powerless, and proceeded to lay waste to the Fire Nation fleet besieging the city.

Spring 100 AG

 * Aang entered the Avatar State when General Fong used earthbending to bury Katara underground to force Aang into the Avatar State. He used airbending to knock the general to the floor, rose into the air on a tornado, and crashed down to the earth, releasing a powerful earthbending attack on the general, his guards, and his fortress. A small air sphere surrounded Aang before the spirit of Avatar Roku took him to the Spirit World to explain to him about the true nature of the Avatar State. In several flashbacks, Avatar Kyoshi, Avatar Kuruk, Avatar Yangchen, and an unnamed fire Avatar were seen in the Avatar State.
 * Aang entered the Avatar State when infuriated at a group of sandbenders for kidnapping Appa. A large air sphere surrounded him, lifting him up into the air, but was brought down by Katara, who grabbed his arm and embraced him.
 * While battling in Ba Sing Se, Aang finally was willing to give up Katara to open the last chakra and willingly enter the Avatar State, but he was soon struck by lightning from Azula.

Summer 100 AG

 * Aang suffered a blow to the back while fighting Phoenix King Ozai in the same spot where Azula struck him with lightning, reopening his chakra and enabling him to effectively use the Avatar State. He collected all four elements and compressed them in a sphere around him, moving at incredible speed, plowing straight through obstacles whereas Ozai had to dodge said obstacles. The sphere could be used both for offense and defense. Since the sphere contained all four elements, it allowed Aang to earthbend and waterbend while away from a source. After the fight was over, Aang used it once again; pulling in the ocean to put out the fire at Wulong Forest, before lowering the tide back again, this time entering a momentary glow with realized control.

After the Hundred Year War

 * During a confrontation with Fire Lord Zuko over Yu Dao, Aang entered the Avatar State with intent to fulfill his promise to kill the Fire Lord if he became like Ozai, though was brought out of it by Katara.
 * During the battle for Yu Dao, Aang entered the Avatar State once more to stop the Earth King and Fire Lord's armies from reaching Yu Dao by creating a massive chasm around it. When he did this, he made a sphere with all four elements reminiscent of his fight with Ozai.
 * Aang entered the Avatar State twice non-continuously to defeat Yakone and used his energybending to take the criminal's bending away.

Autumn 170 AG

 * Korra entered the Avatar State after having her bending abilities unlocked by the spirit of Avatar Aang when "she was at her lowest point". She formed an air spout to lift herself into the air and released air, fire and earth rings around her before forming a large wave from the ocean below her and sending it crashing against the cliff.
 * Korra entered the Avatar State again while using energybending to restore Lin Beifong's earthbending abilities.

Spring 171 AG

 * Korra entered the Avatar State to win an air scooter race against Tenzin's children, though Tenzin admonished her for abusing her power.
 * Korra entered the Avatar State while encountering a dark spirit in the Southern Water Tribe.
 * Korra entered the Avatar State in a desperate attempt to break free from dark spirits while trying to open a dormant spirit portal in the South Pole.
 * Korra entered the Avatar State to make an opening in the Northern Water Tribe blockade at the Southern Water Tribe.
 * Korra entered the Avatar State after encountering a dark spirit while traveling to the Fire Nation by speedboat.
 * Korra entered the Avatar State briefly when she awoke from her spiritual cleansing journey at the Bhanti Village Temple.
 * Korra entered the Avatar State when she successfully traveled to the Spirit World alongside Jinora.
 * Korra entered the Avatar State while in the Spirit World to open the Northern spirit portal.
 * Korra entered the Avatar State while in the Spirit World again to engage Vaatu during Harmonic Convergence to prevent Vaatu from fusing with Unalaq and to re-imprison him into the Tree of Time.
 * Korra again entered the Avatar State in both realms several times to engage the newly created Dark Avatar who was in his own unique Avatar State to decide the fate of the world.
 * Korra entered the Avatar State again in the Spirit World after being reunited with Raava shortly before the end of Harmonic Convergence.
 * Korra entered the Avatar State in an attempt to clear the spirit vines that were overtaking Republic City.

Meditation


Aang did not enter the Avatar State during meditation and harmony with the spirits around him, but his tattoos and eyes glow in the same way when he used meditation to enter the Spirit World. With this method, he visited the Spirit World with his soul, leaving his body a defenseless shell in the real world. An example of this was seen at the North Pole.

Known occurrences of meditation

 * Roku meditated in the temple on Crescent Island to enter his Avatar State.
 * Aang meditated into the Spirit World to find a way to save the North Pole.
 * Aang meditated on Avatar Roku's home island to meet him in the Spirit World. Curiously, when Aang was shown from a non-Spiritual World perspective after crossing over, his tattoos were not glowing, which differed from previous occasions when his tattoos remained glowing.
 * Aang meditated on the lion turtle to gain wisdom from his past lives on what he should do when facing Fire Lord Ozai.
 * Aang meditated before meeting Zuko in Yu Dao to ask Roku for some advice when he sees Zuko.
 * Korra meditated while kidnapped by Tarrlok to find out more about Aang and Yakone.

Trivia

 * Before the elaboration of how the Avatar came to be in "Beginnings, Part 1" and "Beginnings, Part 2", Michael Dante DiMartino stated in Avatar: The Last Airbender—The Art of the Animated Series, page 14, that "In the series bible, we [he and Bryan Konietzko] wrote that 'the Avatar is the incarnation of the Spirit of the Planet in human form,' though we later dropped that idea for the series"; however, no mention of the Avatar spirit's origin is made in the released version of the series bible. On page 28 of the art-book, DiMartino further elaborates on the status of the series bible, saying that it is sixty-five pages in length. Contrarily, the released version of the bible, entitled "Avatar: The Last Airbender I.P. Bible", is only nine pages long. Despite these claims, the original assertion apparently found in both series bibles must be considered true if one takes stock in a statement on an archived Nick.com page of the Wayback Machine, which one must do as all that is revealed by Nickelodeon is canonical. At this URL, within the tab titled "THE LEGEND" is a subsection (in itself another tab) that reads "THE AVATAR". Its response to the question of "What is the Avatar?" is "The Avatar is the incarnation of the Spirit of the Planet in human form." Due to the fact that the Nick.com statement was released while the series was running, the information was technically a part of the series as well. Therefore, although even one of Avatar: The Last Airbender's creators seems not to believe so, DiMartino's conceptional idea of the Avatar reigned true, if inadvertently.
 * While pursuing information in Wan Shi Tong's Library, Katara discovered that one of the Avatar's past lives had been left-handed.
 * The term "Avatar" comes from the Sanskrit word avatāraḥ, (Sanskrit: अवतारः), which means "descent". In Hinduism, Vishnu manifests himself as an avatar to restore balance on earth, during a period of unbalance.
 * The cycle of reincarnation corresponds to the cycle of the seasons; each of which is affiliated with a particular nation and element; fire and summer, air and autumn, water and winter, earth and spring.
 * The Avatar State was much more simplistic in the unaired pilot; Aang put himself in danger to activate it and seemed to be able to exit the State at will, seemingly indicating mastery. In the eventual show, the concept of the Avatar State was much more complex as the Avatar is not born with mastery of the State and it activates only when the Avatar is in real danger or from extreme emotion.
 * Stopping the Avatar State during its reflexive use might not represent mastery of the Avatar State but rather the ability to harness the Avatar State's power momentarily and enter and exit the State at will more freely. Aang stopped the State himself a few times throughout the first series, initially at the Southern Air Temple following soothing words from Katara, as well as in "The Storm" when his tattoos only briefly glowed. He did it again in "The Desert" when he realized he had nearly taken his wrath out upon Katara, and finally when stopping himself from killing Ozai at Wulong Forest. The Promise Part 1 supports this, as Aang enters the Avatar State when Zuko starts to act like Ozai, snapping out of it when Katara reminded him he could do things he would later regret.
 * Aang demonstrated little to no realization or memory as to what he was doing at various times during usage of the Avatar State, though at other times he was shown to have had such understanding and cognitive awareness of his surroundings. This was demonstrated when Katara's words alone brought him out of the Avatar State at the Southern Air Temple, when he experienced haunting nightmares regarding his actions at the North Pole, and after stopping himself from nearly harming Katara in the Si Wong Desert.
 * It has been stated by the series creators that Air Nomad tattoos glow when in the Avatar State because they follow chi lines in the body. Curiously, however, several Air Nomad Avatars were shown with only their eyes glowing.
 * The glow while in the Avatar State was influenced from the anime FLCL, of which the creators are fans.
 * There is a recurring joke that people who battle fully realized Avatars always end up "looking stupid".
 * Chin the Conqueror ended up having all of his clothes blown off after he challenged Avatar Kyoshi, leaving him to stand in front of his own army in his undergarments.
 * Fire Lord Sozin was left hanging from a stone pillar by the back of his robe after his duel with Avatar Roku.
 * During the battle at Wulong Forest, Ozai was left powerless and could barely move, prompting Toph, Sokka, and Suki to insult him.
 * Aang is the youngest biologically and the oldest chronologically known fully realized Avatar.
 * Aang went into the "continuous" Avatar State nine times during the course of the first series, but only once into the "non-continuous" State. Aang entered the "continuous" Avatar State once in The Promise and twice "non-continuously" in The Legend of Korra.
 * The biological parents of the known Avatars before Avatar Korra were never seen or mentioned, with the exception of a shadowed glimpse of Aang's mother at his birth.
 * Both Avatar Aang and Avatar Korra were taught by descendants of the previous Avatar. In Aang's case, Zuko (Roku's great-grandson) taught him firebending; in Korra's case, Tenzin (Aang's son) taught her airbending.
 * When Aang went into the Avatar State at the Southern Air Temple, Avatar statues across the world lit up, signaling the return of the Avatar. It is unclear what triggers this phenomenon, seeing as Aang had been in the Avatar State for a hundred years and the statues did not light.
 * The only Avatars mentioned to have descendants were Aang, Kyoshi, and Roku. Kyoshi had a daughter, Koko, with an unknown husband; Roku had children with Ta Min, of whom Ursa is a descendant (thus making Zuko and Azula descendants as well); and Aang had Bumi, Kya, and Tenzin with Katara.
 * Korra was the youngest known Avatar to have learned her status; most Avatars are not told until they are sixteen, but Korra discovered her ability to control several elements by the age of four. The only other known exception was Aang, who was told at age twelve.
 * Avatars Aang and Korra are the only known Avatars to have achieved full realization without having full mastery of every element; Aang at the time showed room for improvement in earthbending and firebending, as evidenced by comments from Zuko and Toph, his firebending and earthbending teachers respectively; and Korra mastered three of the bending arts but achieved realization shortly after having unlocked her ability to airbend for the first time.
 * Besides descendants in the cases of Kyoshi, Roku, and Aang, and parents in Korra's case, the only other family members of an Avatar to be shown in either series are Korra's uncle, Unalaq, and her cousins, Desna and Eska.
 * Previously, past lives of the Avatar could manifest through the current incarnation and occupy the given host's body for a short period of time. However, it is no longer possible for the Avatar to connect to any of the past lives before Korra, as Dark Avatar Unalaq severed that connection when he destroyed Raava.
 * Aang, Roku, and Kyoshi are all known to have had their own island residence. Aang created and lived on Air Temple Island, Roku lived on his island, and Kyoshi created and lived on Kyoshi Island.
 * The only known Avatar to remain in their home nation to master the non-native bending arts, apart from airbending, is Korra. Unalaq stated that this goes against the whole purpose of the Avatar's journey.
 * Wan is the only known Avatar to have a spirit or animal as a bending master, having honed his firebending skills by observing a white dragon and trained in the art of air, water, and earthbending under the tutelage of Raava.
 * The glow from the Avatar State resembles the white aura surrounding Wan when he and Raava temporarily merged.
 * When Roku mentioned to Jeong Jeong that he had mastered the elements "a thousand times in a thousand lifetimes", he was exaggerating; since the Avatar was created in 9,829 BG, the average age of each Avatar would have to be ten years for his statement to be true.
 * The two occurrences in which Raava permanently merged with a human contrast each other in that the gender and original elements of the human were opposites. When the cycle was initially started, the spirit merged with Wan, a male whose original element was fire. The second instance was with Korra, a female whose original element was water.