Thematically, I think this movie was about guilt and atonement. The setting was interesting to me because it portrayed one of the few nations in world history that has been under both collectivism and theocracy -Afghanistan. It shows how the country was utterly destroyed by those two political ideologies. Pay attention to the Afghanistan prior to the Soviet invasion in 1979 and the Afghanistan in 2000, prior to September 11. Although the pre-1979 Afghanistan had its flaws, namely, tribalism and cast-discrimination, it was like a utopia compared to the brutal theocracy of 2000.
http://www.imdb.com/title/tt0419887/