Buddhist Tantra, a further development of the Mahayana, also makes use of the magician's illusion example in yet another way. In the completion stage of Buddhist Tantra, the practitioner takes on the form of a deity in an illusory body (māyādeha), which is like the magician's illusion. It is made of wind, or prana, and is called illusory because it appears only to other yogis who have also attained the illusory body. The illusory body has the markings and signs of a Buddha. There is an impure and a pure illusory body, depending on the stage of the yogi's practice.