demands maximum effort yet allows students to progress according to their own capacities. Poses are adapted with the use of props (pillows, foam wedges, etc. to balance body positioning) to meet individual's needs.
Before becoming certified, Iyengar teachers must train for several years. They are required to teach for a minimum of two years and demonstrate their own physical expertise and understanding of Hatha Yoga (postures), Pranayama (breathing). They also have to show a deep knowledge of the philosophy of Yoga as well as an ability to teach. They are assessed by a board of senior teachers before certification is granted.