Amir has gone through so much in this book because he is constantly reminded of his best friend, Hassan who later on in the book he finds out he's his brother. There was two events in this novel that the audience could truly see the influence of the past and the present and how silly it is that history repeats itself. After Amir and Hassan competed in the kite running competition it specifies how Hassan went to go get the winning kite for Amir. "For you a thousand times over! said Hassan," then he smiled his Hassan smile," said Amir. (pg. 67) That was the last time Hassan truly smiled. After that event he gets raped and Amir knew and didn't do anything about it. He lived with that guilt until he had a chance to make it right by saving Hassan's son, Sohrab. After going to American and coming back to Afghanistan for a favor that Rahim Khan needed he discovered that Hassan was killed by the Taliban and he had to save his son Sohrab. After everything that occurred they came back to America, Sohrab was mute at first but Amir made him feel at home. As Amir stated on the very last page, "I blinked and the smile was gone. But it had been there. For you a thousand times over... It was only a smile, nothing more." (pg. 371) This quote closes up the story from the first time the audience saw it appear when Hassan said it to Amir and now we see it once again when Amir repeats Hassan's words and says it to Sohrab.