Um...well... [scratches his head] Basically, people from all sorts of different universes can meet on the Astral Plane, including--at least as well as I understand it--people from lots of different versions of the same universe. You know, alternate realities, like in sci-fi shows. So the Cloud I met here might be the same Cloud you know, or he might be a Cloud from some other reality. Something like that, anyway. I don't really know how this place works.