Iyengar yoga is precise, profound, transformative, and is suitable for all ages and ranges of mobility. Wooden blocks, chairs, ropes, blankets, and other props can be used during asana sequences to facilitate what B.K.S. Iyengar called, “meditation in action”. B.K.S. Iyengar developed a safe, sensitive, creative system of practice in which the practitioner progresses not only in asana and pranayama (physical and breathing exercises), but gets to know also a practical, holistic philosophy that harmonizes body and mind to experience deeper, more subtle states of consciousness.