A merchant comes to a desert town with a silver jar. He says, "I sell moonlight!" Rich people offer gold. He says no.
A poor girl, Safiya, has no gold. She has a song from her mother. She hums it, and the jar glows. The merchant says, "Moonlight cannot be bought. It can only be shared." He gives her the jar. That night she opens it on the roof. A soft light fills the town. The children fall asleep.