what are the morality of story?

This depends on what you mean by morality. Are you referring to the themes or messages conveyed in the story?

Morality mean advantages of this story

Oh, I see. I think this story gives us the sense of determination this family has despite incredible obstacles. Both Hari and Lila are kids forced to grow up to soon but rise to the challenge. I really liked this book. It was tragic yet surreal at times. The book reminds us that there is salvation to be found even in the most dire of circumstances.

Thanks you very much