The wide range of props serves as a tool to make the practice accessible to people of all age groups and health conditions. Together with B.K.S. Iyengar's detailed instructions and thorough interpretations of ancient yogic texts, the props have enabled millions to realize his vision that "Yoga is for All".
This is how Iyengar explains why he introduced props into his practice and teaching:
"Props help to perform the asanas with ease... The student understands and learns asana faster on props as the brain remains passive. Through passive brain one learns to be alert in body and mind. Props are guides to self-learning. They help accurately with no mistakes."
The props are meant to give a sense of direction, alignment and understanding of the asana.
All the profit made from selling the props is meant for schooling the gifted children and youth.