I don't know about souls and crap like that, but wouldn't it be neat if when you died, the thing that you believed to be true,[I.e: heaven, reincarnation], happened?
Personally, I prefer to be neutral to the subject. First off, I'm only 13 so I really shouldn't be making big choices like that, and secondly, It's too big of a concept to think about. When I think about it I feel really uncomfortable because I'm not allowed to know about that subject. I don't know why people believe things without actually knowing.