Iyengar yoga focuses on correct alignment of the body so that it can develop harmoniously and anatomically perfect. If the student practices with intelligence and awareness, there is little chance of injury or pain. As all bodies are different and people have specific weaknesses and difficulties, Iyengar yoga makes use of props to help students achieve the best possible poses within their limited capacity. The Iyengar method, which is renowned for its precision and attention to detail, involves the practice of asanas (postures) and pranayama (breathing). Because of the intense concentration required to position parts of the body, both skeletally and muscularly, the mind becomes focused and sharp, and this results in a form of "meditation in motion." Practitioners strive for this state of total physical awareness, mental clarity and ultimate serenity.