This is a video lecture on the essence of yoga and its related anatomy and physiology of yoga, a demonstration of some advanced yoga and a short beginner level class i gave to about 500 people at Art Gallery of NSW, Sydney at the start of 2010. Thanks to Sheona White for organising this and Ross Glendenning and Verity Gill for there assistance in demonstration. In addition to the physical yoga demonstration and the lecture I demonstrate here strength using internal relaxation power from diaphragm, a relaxed abdomen and a relaxed neck. I also demontrate breath-control that can slow the heart rate from 88 to 33 beats per minutes in about 45 seconds. Thank you to 3 of my main teachers who taught me the essence of this work. Prof Bhim Dev, Natanaga Zhander (Shandor Remete) and Zhen Hua Yang
