[Iroh listens and looks in thought for a moment]

Ah, a question that has often been discussed. The avatar is most assuredly human, as they die, make mistakes, create families, and live their lives like the rest of us. All avatars will also be reborn in a strict cycle. They are a unique human with talents which no one else possesses, but they are still very much part of the human world. They serve as a bridge to the spirit world as well, to help aid interactions between the two.