Live in a Nation and battle and stuffs that benders do. Or be a regular person like Sokka.
(Sokka: I'm not normal. Me:Oh really? Sokka: Yeah! Mushroon! Mushroom! Freindly, freidnly mushroom! Me: -.-)
The Spirit Oasis is a verdant garden and pond located in a cave in the Northern Water Tribe's capital city at the North Pole. Although the land outside is perpetually frozen, the Spirit Oasis itself is warm. It is a place where the Spirit World overlaps with the mortal world.