One Question That Needs Clearing Up...

[Renmiri]

Until later they regretted.

Fair enough...

He leave Dream Zanarkand alone because it is his precious....and yes, he isn't that sane.

Yu Yevon can restrain Sin from attacking his precious Dream Zanarkand until Jecht came along to see his son and Sin Destructive Nature came along too and wreck the city.

Maybe it is just me but it sounds a bit forced... Yu Yevon is supposed to be almost purely a summomning tool now. But he can control himself every 10 years to leave Zanarkand alone ? Can he or can he not control himself ?

Go talk to Maechen in Mt Gagazet...

Huh ? Are you talking about the part he tells Tidus about Sin's first appearance ? I didn't read anything that would contradict my theory in his speech.