When Bopé-joku closed his lips, the corn withered and dried up. The happy whistlings that made the cornfields bloom and gave them vigor and beauty were heard no more. From then on the Bororo people cultivated corn with pain and effort and reaped wretched crops. Spirits express themselves by whistling. When the stars come out at night, that’s how the spirits greet them. Each star responds to a note, which is its name.