Man... ive read something very similar to this... it was said that when were dreaming we are in fact other person in other place (not of this earth)... And as when we are awake we only remember some small parts of all we dream, when we were "there" in the dreamworld (that is in fact other world) we could only remember small fragments of our life "here" in the waking world.
I also dont believe very much this, but i think (or fear) that it may actually be truer than we dare to think...