^ What he said. The "Eden is a GARDEN" idea is most certainly the most plausible thing on this page. There are too many coincidances for it not to be planted by the designers. All the other theorizing on the nature of GF is unnessesary, I think. Most of the stuff I've read, while creative and more than I could've ever come up with, has no indications of being true in the game other than "well, there's nothing saying it's NOT true."

Take Ultimecia's guardians (all the annoying bosses in her castle, remember?) all having GF's to draw. I honestly believe that the designers put this feature in the game to help out players who had not gotten many GF's the first time through -- you'll note that ALL the GF's are possible to get on the 4th disc (except maybe Diablos, I'm not sure if you can get him in UC if you didn't grab the lamp from Cid). But I digress.

Kudos on the Eden/Garden theory, to BG-57 and Unknowns. You've made me believe it.