Quote Originally Posted by Little Blue View Post
blackmage_nuke, I think I once read that the temple aeons spend their time in DZ when they're not being summoned or their fayth prayed to...
There's actually direct evidence of that in the game. Tidus encounters the Fayth of Bahamut in DZ right at the beginning.

On the matter of Temple Aeons, it's clear that many of them became Fayth after the destruction of Zanarkand. In particular Anima's Fayth is very recent. Do they just feed into the dream of the Gagazet Fayth, or are they dreaming separately? The implication seems to be they are connected.