Link to Amazon I was recently sent this book, The Power of Yoga by Yamini Muthanna , one of BNS Iyengar's students  ( the 'other' Iyengar, also a student of Krishnamacharya for a time as well as of Pattabhi Jois, still teaching in Mysore  http://bnsiyengar.net/ )  it's bea…