So....I've heard a theory about Kefka turning evil because Celes rejected his advances. And its quite possible that's a part of it. But, if you go to the Pub in Vector the first time you're there, there's a dude who says that Kefka was the first one to get a Magitek infusion but....it went wrong and sent him insane. This ties up with what Gestahl says on the floating continent later, hinting he's had control of both Kefka and Celes since they were children.

Thoughts? Comments?