He would not speak of it. I have spoken to him on Gaia, and he does not remember any of the Void. [It was disappointing, of course, but even without his memories Cecil was still the same person.]

In the Void,, ten warriors, including myself, fought on the side of the Goddess Cosmos, to restore order to the world. Ten others fought on the side of the God Chaos, who intended to plunge the world into disorder. The Goddess Cosmos put her power into ten crystals, to aid her warriors, and let them fight on even when she was defeated. Because of those crystals, we were able to continue on to defeat Chaos even when all seemed lost.

Chaos's defeat is the last thing I remember before appearing upon Gaia.