It ends with this: a man on his knees, fighting unconsciousness, blood streaming down his face as he struggles to contain the massive explosion of a star gone supernova and prevent the deaths of millions of lives (rebels, civilians, soldiers, merchants, slaves, parents, children, orphans, her).
He resists and manipulates the influx of energy into himself - the tension is familiar, it has plagued him all his life; a constant whirlwind in his soul until at last he subdues it and loses his sense of self.
A last awareness in his mind: millions of lives giving a great sigh in wonder and disbelief, and Rey saying his name as he fades away into the spaces between the stars.