I believe author Khaled Hosseini's choice to use kite flying in the final scene with Amir running the kite for Sohrab was both a logical and inspired way of ending the novel. It completed the cyclical process of kite flying that began when Hassan faithfully ran the kite for his privileged friend Amir when they were youths. At the end of the story, the roles have reversed: Amir, the successful writer and former kite flying champion, offers to run the kite for his emotionally disturbed nephew. Sohrab accepts Amir's proposal, and this single act helps to break the ice between them. Amir knows that the breakthrough is "only a beginning," but it is another step toward better relations with Sohrab and another step in his own redemptive healing process. Symbolically, the kite represents freedom, and Amir's decision to run Sohrab's kite also indicates another step in freeing his guilty conscience from the many sins he has committed in the past.