The theory that I have is that every living thing is created with a small piece of the Creator. And, as such, we are all connected (related, so to speak). When we die, we return to the "center" of creation (return to the Creator). From there, I believe that we move on to the next life experience, and this continues until we reach the point that we've learned all that we were meant to learn. Then we can rejoin the Creator and remain in that state of bliss. Or, maybe that cycle continues on and on forever - because other wise we would be bored. lol I don't know, but it sounds good.