Sun Warriors

i want your opinion on an avatar from one of these tribes/clans

<p>Don't wanna sound weird, but let's assume the sun warriors that Aang and Zuko met weren't the generation that went into hiding... How did they... I mean, there weren't enough of them to ensure that their offspring... Okay, excuse the blunt language, but do we have to assume that the last of the sun warriors are the product of incest or how did they keep their genetics clean with a tribe consisting of maybe a hundred people? </p>

<p>We may not exactly know when the Sun Warrior civilization came to be, but we know that they learned the Dancing Dragon firebending form from dragons.  </p><p>Could it be possible, however, that Wan was the "inventor" of the form, as he was [essentially] the first human to use firebending as an extension of his body, rather than just blasting fire around to attack spirits and obtain food (as mentioned in a brief narration by the huntsman)? We see him learning the technique from a white dragon while living in the Spirit Wilds for two years, followed by the mentioned narration by the huntsman, marveling over Wan's use of fire like no one has done before. </p>

<p>What is the original source of firebending? In <i>The Firebending Masters</i>, the true source seems to be at least 3 different, possible things: the Sun, the dragons, and the fire (the life and energy) of the soul. So which is it? </p><p>In <i>The Firebending Masters</i>, when Zuko's firebending is so weak due to changing sides, he and Aang go off to the ancient Sun Warriors civilization, despite both them and the dragons being supposedly extinct. There is a good argument for which of these 3 are the true source: for the sun, firebenders draw their power from it, are weaker at night, and cannot bend at all during a solar eclipse; for the dragons, they were the "original" firebenders until the Sun Warriors became the first human firebenders after understanding the connection between the sun, the dragons, and the fire of soul; for the fire of the soul, after Aang learns from the dragons, he says, "<span style="line-height:22px;">I thought firebending was destruction.....</span><span style="line-height:22px;">But now I know what it really is ... it's energy, and life", and Zuko says, "</span><span style="line-height:22px;">It's like the Sun, </span><span style="line-height:22px;">but inside of you......</span><span style="line-height:22px;">I lost sight of my inner fire."</span> </p><p><span style="line-height:22px;">Which would you say is the <i>true</i> original source? A person's soul's fire/life/energy, the dragons, or simply the sun?</span> </p>