 They eventually find Jecht (whom they must defeat to eliminate Sin), and Tidus makes peace with his father in the aftermath.After defeating the spirit of Yu Yevon (who is responsible for Sin's rebirth), the "fayth" are allowed to leave and the summoning of Dream Zanarkand ends.As he vanishes, Tidus says goodbye to his friends and joins the spirits of Auron, Jecht and Braska in the afterlife.