The physical geography is a huge influence on the novel because it gives the reader the historical context needed to understand Afghanistan's political unrest and the warring that takes place. The reader understands the why behind Baba and Amir leaving their home country and fleeing to America. The geography of the novel also helps put into perspective Amir's journey back to his homeland and how it has changed. The author does an excellent job of using imagery to illustrate the changes that have taken place since Amir left, you really get a good mental picture of a war torn country full of orphans and tears. The physical geography also lends to an understanding of the culture of the Afghan people as well. Without the geography in the novel, it would be difficult to follow those passages and the journeys that Amir takes in his path toward redemption.