Yoga. Yoga is an ancient Indian discipline,that involves sitting in various positions. A devotee of yoga may sit motionless,for several hours. Each position has spiritual significance. Simple yoga positions can be as simple as sitting cross-legged on the floor,advanced yoga positions can only be done by a contortionist or an acrobat. In 1989,the Vatican denounced yoga,saying that it can 'degenerate into a cult of the body'. In May 2009,Mr.Ali Bardakoglu,the head of the Turkish government's Directorate of Religious Affairs denounced yoga,saying that it would erode faith in Islam.