If you ever held a downward dog, you have Bellur Krishnamachar Sundararaja Iyengar to thank. The man who popularized yoga throughout the West died Wednesday in his native India. He was 95. Iyengar, a sickly child, discovered a talent for flexibility and a dedication to the craft of yoga as a teenager. A connection with Western violinist Yehudi Menuhin in the 1950s brought Iyengar to Europe, and introduced his practice around the world. He codified sutras into moves now practiced by millions about the world. “He was a one-person movement,” says his daughter.