At the beginning of Jostein Gaarder's Sophie's World, his very clever novel about the history of philosophy, the philosophy teacher whom he uses to teach his readers about philosophy asks Sophie, the book's primary character, "Who are you?"
     It's a good question.  We identify ourselves with our name, our family, our work, and many other things, but these do not address the more basic question:  who are we?  We call ourselves human beings, but in fact what we are doing is using ourselves to name ourselves.  And we're back to square one.  To wit, how can we see if there is no window?
     Maybe that's why we need a God.