In the Sierra Nevada de Santa Marta, on the Caribbean Coast of Colombia, coca is consumed by the Kogi, Arhuaco, and Wiwa by using a special device called poporo. It represents the womb and the stick is a phallic symbol. The movements of the stick in the poporo symbolize the sexual act. For a man the poporo is a good companion that means "food", "woman", "memory", and "meditation". The poporo is the mark of manhood. When a boy is ready to be married, his mother initiates him in the use of the coca. This act of initiation is carefully supervised by the Mamo, a traditional priest-teacher-leader.