Definition of Irony
When Amir speaks with an old beggar who once knew his mother, he learns about Sofia's somewhat fatalistic approach to things. As the old man tells a story about her to Amir, he uses situational irony and foreshadowing to illustrate her mixed feelings about happiness. As he recounts it, Amir’s mother once said:
I'm so afraid. Because I'm so profoundly happy. Happiness like this is frightening [...] They only let you be this happy if they're preparing to take something from you.
When the old beggar speaks to Amir about his mother, Hosseini uses situational irony and an idiom comparing a weed to a flower to show how unfair her fate was:
Unlock with LitCharts A+His eye managed to twinkle through the veil of cataracts. “‘The desert weed lives on, but the flower of spring blooms and wilts.’ Such grace, such dignity, such a tragedy.”