Why does parvana want a light to be left on at night after what happened?

Parvana wants a light to be left on at night as a symbol of hope and safety after experiencing trauma and loss. The darkness represents fear and uncertainty, while the light offers comfort and a sense of security in a dangerous environment. Leaving a light on also reflects her desire to feel connected to her loved ones and maintain a sense of normalcy amidst chaos. It underscores her resilience and need for reassurance in difficult times.