Some of yoga's most important writings, Patanjali's Yoga Sutras have remained relevant for 2,300 years because of their wisdom and inspiration. In the Yoga Sutras, Patanjali prescribes adherence to eight "limbs" or steps to quiet the mind and achieve the sacred state of "kaivalya." Spread throughout are Patanjali's 196 aphorisms, found in each of the book's four chapters: "Samadhi Pada" (blissful state where the yogi is absorbed into the One), "Sadhana Pada" (practice or discipline), "Vibhuti Pada" (power or manifestation), and "Kaivalya Pada" (liberation). In "The Wisdom of Patanjali's Yoga Sutras, " noted scholar and longtime practitioner Ravi Ravindra offers a fresh, direct translation of Patanjali's text. Ravindra's enriching, extensive commentary and his spiritual exercises make this book an integral part of daily practice.