Eternal Flame



The eternal flame is the first flame ever created in the history of the Avatar World. It is an ancient and sacred object to the Sun Warriors and has been kept alight by their civilization for thousands of years. It is the Sun Warrior's most prized possession and is guarded and kept going at all times.

History
The flame was given to the Sun Warriors as a gift from the dragons, the original Firebenders. Taking a piece of the eternal flame to the Firebending Masters is part of the test of worth for those wishing to learn the true nature of Firebending. If deemed worthy, the masters will share the secret with them; if not, they are destroyed on the spot.

When Aang and Zuko visited the Sun Warriors' ancient city to find the origin of all Firebending, they were given the task to take a piece of the flame to the cave of the masters and present it to them. The Sun Warrior Chief told them to keep the flame at a constant temperature, as a small flame would go out, whereas a large flame would spiral out of control. As he held the fire in his hands, Aang commented, "It's like a little heartbeat."

If this fire really was truly the first flame given to man by the dragons, then it is likely older than Avatar itself.