In Moroccan mythology, the Jnun (plural, meaning “spirits/ghosts”; singular- Jenn) are invisible spirit-beings, some of which (particularly ‘Aisha Qandisha) can take the form of attractive women or monstrous hags. If this type is encountered by a person and a knife isn’t plunged into the ground, the Jenn will possess the person. This possession causes several negative physical and psychological affects and results in impotence as well. The Jenn cannot be exorcised, it can only be placated. The usual means of placation are a trance-inducing ritual, music, or animal sacrifice (music creates a state known as hal which can grant baraka to spirits which accept the music). Their etymology is related to the Jinn.