I am so glad that someone is writing about Yoga beyond asana. I started doing asana about 11 years ago and I could feel that there was more to it than just putting your body in certain shapes. Luckily I have very good teachers who helped me to look behind the asana. I also really like reading books on yoga. Do you know "The Yogi's Roadmap" by Bhavani Silvia Maki - I thought that was an exceptional book based on the Yoga Sutras. Also very interesting from a feminine perspective.