Safia and the smile

I was shocked to see her alone in the middle of street sitting on the chair. She was definitely not looking normal but what surprised me is her smile on seeing me (u can?t imagine how difficult for anyone to smile in the temperature of 45 C). On inquiry from my brother I came to know that her mother died on her birth. Her father is a home servant in my neighboring home. He has ENOUGH time to put on the chair in the morning and put on the so called bed in night other than giving him food two times a day. All the day she spends in a street watching people coming and going.
I am thinking how she can give smile? How can she be optimistic towards the world? Is she innocent to know that the world is not fair with her? Does not she show anger rather than smile to one who is depriving her of basic necessities for his luxuries? Like always I have questions and no answers.

P.S: The image is taken by my brother Farhan.