You know...there was something that Bahamut's fayth said to Tidus in the game that got me thinking. He said "Both and your father have been touched by sin. You're more than just dreams now" Okay, so they were dreams of the fayth, but they were both touched by Sin...what does that mean? They didn't completely vanish? I mean at the end of the game you see Braska and Auron along with Jecht, so does that entail that instead of them completely vanishing, they went to the Farplane? I'm sorry, I'm just a little confused on that. What are your thoughts?
i'll share my own thoughts,,, lets see... i think tidus and jecht was really "just" a dream. But because sin's interference,,, let's say a contact between a dream and reality... it affected their existence! they existed in two different worlds, and have a participation to the both. .... maybe thats the reason they went to the farplane, they died in spira because the source of their lives vanish. A dream that comes true is not a dream anymore.