While I was in Scientology I read about the different valences. It's basically a theory about different spirits or actions of other people (even dead ones) in one's body. For example you're your mother when she was penetrated by her lover and therefore you might feel like someone else or have a different gender. The funny thing is that people with multiple personalities are locled away in a madhouse, but a transgender person simply embraces his other personality instead of erasing it. That is of course only if the theory was right and it could be "cleared" as Scientologists claim it to be.
Now please don't discard this idea. All religions and superstitions are equal.