Wisdom of Patanjali's Yoga Sutras

'I was particularly impressed by your commentary on Patanjali Yoga Sutra, which is extremely useful for people who want to learn the essence of Sutra having no knowledge of Sanskrit or any other Indian language. I always recommend your book to those people who enquire of me about the Yoga tradition.' Samdhong Rinpoche, Ex Kalon Tripa (Prime Minister) of the Tibetan Government in Exile, Dharmashala