After death, people usually just wait in a long line. When they get to the front, they're either good enough to go to heaven, or they go to hell, get their sins washed out, and get reincarnated to try again! [At least, that's the best way it can be described - the series is notoriously vague when it comes to this sort of thing.] There's an area in between that I usually stay in, though - there's lots of strong people there to train with!