Quote Originally Posted by tailz
well wat if ivalice would be a dream world they are there when they are asleep and when they go back they wake up

but that would mean ivalice wouldnt exist.
Nope, there is nothing in the game to suggest that, and if you are willing to argue that the five were in a dream state for the duration of the time they were in Ivalice than I could just as easily argue that they weren't there at all. Whether they are totally missing or merely in a coma is impossible to prove, as the game makes no indication of either. So I can manipulate that idea to fit my theory as well.