First I have to say: BEST TOPIC EVER!

The way I see it, (SPOILER)Tidus, his mom and Jecht are dreams of the Fayth. The dreams are based on real people that existed in Zanarkand a thousand years ago. Tidus is based on FFX-2's Shuyin for instance, to me that makes sense. That explains why they look alike and all. But that Dresssphere stuff really sucks I think.

The one thing I don't fully understand is Sin, how can Sin transport people ( Unsent and Dreams of the Fayth for that matter ) through dream worlds and regular worlds? Is Sin some sort of portal? Also, what is the connection between Sin and Yu Yevon? I didn't quite get that.

Sorry if half of the post is off-topic, answer my questions if you feel like it.