In Part 4, the author gives us the sense that, although the road will be fraught with difficulties, there is hope for a better future in Afghanistan. That hope stems from the resilience of its people, and their willingness to give up the "comfort and tranquility...(of the) good life" they may have found elsewhere, to return "home" and "contribute" to its rebuilding.
The author communicates his message through the character of Laila, who, after surviving years of upheaval has finally found a peaceful life in Pakistan. Despite this, Laila is "plagued by restlessness"; young and intelligent, she is drawn by the knowledge that Afghanistan has finally found an uneasy peace, and she wants to be a part of its revival. Motivated by love for her homeland, whose beauty shines like "a thousand splendid suns", Laila and her family leave the security of the quiet village where they live as exiles to "make a difference" in the country that they love. It is because of individuals like this that Afghanistan will have a brighter future.
The story of "every Afghan...is marked by death and loss and unimaginable grief, and yet, people find a way to survive, to go on" (Chapter 50). The years ahead will be marked by seemingly impossible difficulties, as "the promised aid money...(will not come), the rebuilding (will go) too slowly...there (will be) corruption...the Taliban (will regroup)... and will come back with a vengeance, the world will forget once again about Afghanistan". Yet in the end, the spirit of the people will endure, and with innocence and wisdom, because in the end they know it is all they can do, the people will move on, with a hope that is inconquerable (Chapter 51).