"Yoruba theology teaches that there are 401 powers of the right ("angels") called Orisha whose role is to act as protectors and facilitators of humankind. There are also 201 powers of the left called Ajogun ("demons") whose role is to present humans with challenges and obstacles. Eshu's place is unique because he is both an Orisha and the leader of the Ajogun; he is the one in four-hundred-and-one and the one in two-hundred-and-one."