Well, first you have to suspend disbelief and imagine that regeneration or rebirth of a sort happens and people have past lives. Or that we all live in alternate realities and experience things differently in said alternate reality. Then you have to pretend it's entirely normal that we're all trapped together in the same place. It takes a little while to get used to.
This will probably not sound any less crazy unless it's something you've experienced yourself. But it may still sound crazy then.