I always felt she may have been always under control or at least since she was very young. I do wonder how her relationship was with Kefka as it seems these two spent more time together and both Celes and Leo don't seem to want to talk to Terra about her time in the Empire.

I can also see Leo, Kefka, and Celes having a deeper relationship than first thought.

Editga: Here's some of the pictures I found that were totally awesome.

183-tck.jpg The Empire.png Celes and Kefka.jpg

dreaming.jpg scape.jpg