Jinora's penchant for spirituality made me overthink it.
A prediction... If Raava does in deed have to rejoin with Vaatu, that leaves Korra without an avatar spirit. So what of the avatar? Maybe Korra's spirit on its own will be strong enough to carry the four elements and continue to be the avatar. The training wheels will come off after 10,000 years, so to speak.
I think that if you're there in spirit, you don't gain weight since you're there in an ethereal form, but if you go there physically, you still have a body and the rules of the physical world apply.Anyone else think it's a little creepy that they just left the professor's body there to rot? Also, if you can't loose or gain weight in the spirit world, what exactly did he die of? Old age? Terminal case of irritated spirit owl? I know there's a difference between entering the spirit world physically and spiritually, but I'm still a little confused as to the rules.
I don't know, but someone on another board pointed this out. They said it looked like he was trapped in the same tree that Koh lives under.Actually, I may be mis-remembering but didn't Koh also dwell is a gnarled, ancient looking tree like the one Vaatu was trapped in?
A prediction... If Raava does in deed have to rejoin with Vaatu, that leaves Korra without an avatar spirit. So what of the avatar? Maybe Korra's spirit on its own will be strong enough to carry the four elements and continue to be the avatar. The training wheels will come off after 10,000 years, so to speak.