Dreams are postcards from our subconscious, inner self to outer self, right brain trying to cross that moat to the left. Too often they come back unread: "return to sender, addressee unknown." That's a shame because it's a whole other world out there--or in here depending on your point of view.
Einstein said God doesn't play dice with the universe, but I don't know--maybe not as a whole, but I think he gets a pretty big kick out of messing in peoples' back yards.