Kino hopes that the Pearl of the World will open new parts of his world for his family and free them from their poverty and ignorance.
The music of the pearl had merged with the music of the family so that one beautified the other. (Ch. 3)
Kino imagines that he and Juana will be married in the church; he will own a harpoon to replace one he lost a year ago, and even buy a rifle. Further, he envisions Coyotito in the future, sitting at a little desk in a school, writing on a large piece of paper. Someday, too, the boy will be able to read books. And, if anyone is ill, the doctor will come.
The Pearl of the World creates a music of promise and delight, a guarantee for comfort and safety in the future. Its luminescence will ensure his family against illness and protect them from sickness. They will be free from the worries and the threats of poverty.