In 196 short aphorisms, this classic work of Indian philosophy succinctly spells out how the mind works and how it is possible to use the mind to attain liberation. The Yoga-Sūtra is a road map of human consciousness and a helpful guide to the mental states that one encounters in meditation, yoga, and other spiritual practices. Chip Hartranft's translation and extensive, lucid commentary bring the text beautifully to life. He also provides useful auxiliary materials, including an afterword on the legacy of the Yoga-Sūtra and its enduring relevance for us today.