This incident in the story shows both Baba's extreme insensitivity and the chasm that exists between Amir and his father. It is with great trepidation that Amir brings his first story to his father, only to be rebuffed by him. This brings to a head his bitter-sweet feelings for his father, as expressed through some very powerful imagery, "Most days I worshipped Baba with an intensity approaching the religious. But right then, I wished I could open my veins and drain his cursed blood from my body" (p.27).
It is in fact Rahim Khan, Baba's friend, who gives Amir the kind of encouragement with his writing which inspires him for life. This causes Amir to wish that Rahim Khan was his father. However, when he recalls the intimate affection he feels for his father he is suddenly seized with such guilt that he should wish for a different parent that he is physically ill. This passage highlights the very fractured relationship between father and son.