Bolsters, blocks, belts, chairs, and even walls, can safely offer support for weak muscles and unstable joints as practitioners navigate nagging injuries and challenging yoga poses (“asanas”). Combined with an experienced Iyengar teacher, the use of props can also help unlock a subtle, unexpected awareness within. Today’s guest is Andi Wirz, a friend and native of Switzerland who has been teaching the Iyengar method for twenty years and led classes at two of the most respected backcare studios in the country, Samamkaya and Yoga Union.