Section seven, "Purple," relates the transgression of the sacred rules which regulate the relation between man and the animal world. A man has slaughtered a buffalo, the animal representation of the sun, for no reason other than sport. His fellow people witness the sacrilege with shame and grief. The moral implications of the story are amplified by its etiologic character. The buffalo's hump and spine are transformed into a mountain on the western horizon, and its blood, bright and purple, colors the setting sun, darkens, and creates the night sky. The results of these metamorphoses are permanent reminders of the sacrilegious act in the people's physical environment.