The shaman woman is the true magician; she operates directly through her soul, while her body is sunk in sleep. The medicine woman is summoned to discover the cause of the illness by gazing into crystal or water. She can fly through the air and at night the fiery trails she leaves behind her can be seen. The source of magical healing powers lay in women. The ecstatic dance forms part of the procedures for acquiring a power of command over evil spirits and all natural or supernatural causes of diseases.