OK PPL! ITS BAHAMUT SIN! ok, now that we all know that for the 50millionth time, on to seph. Ok, vincient has the right idea. He says that cloud is just a larva, with the thoughts of seph inside him. Now this is y the geostigma syndrome plays such a big part. It is the cells of jenova. That is y kadj and his gang want to have that reunion and they round up all the kids witht he geostigma in them. These r cells of jenova. THey say this in the movie god damn it. Pay attention. Second, the reason y kadj was able to turn into speh. Same as with cloud, he has sephs thoughts inside of him. And then, he produced a renunion by shoving the neck of jenova into him. This caused a reunion with allowed seph to come back.