Amir had watched Hassan get raped. He made Hassan retrieve the Kite, in order to make his father proud. He needed that Kite, or else everything he did would be for nothing. When Amir searches for Hassan, he stumbles upon him getting raped by Assef. Amir states," He was just a Hazara, wasn't he?" (Ch.7,pg,77). Instead of stepping in and standing up for Hassan. Amir just stood there and watched the ordeal take place. He kept on thinking of reasons to justify his vile actions. After all, Hassan was just a mere Hazara. Why should he care? If he stepped in, Assef would have beaten them both to a bloody pulp. He let Hassan take the pain, so that his precious kite would be safe. It is this moment of cowardice that haunts him for the rest of his life. "What was so funny was that, for the first time since the winter of 1975, I felt at peace."(Ch.22,pg.289). Assef beats Amir down and gives him the suffering Amir had wanted. Amir had never gotten the punishment, he knew he had deserved, until now. He grew up, putting away his old selfish thoughts, and fought for Sohrab. Even though he lost the fight, Amir knows that he can finally be at peace.