For practitioners who've been attracted to the timeless practice of yoga, but don't fully understand the philosophy behind it, this comprehensive guide to yoga's spiritual teachings illuminates its meaning for the modern age. Working with yoga instructor Jo Manuel, Forstater presents new translations of primary yoga scriptures like the Upanishads, the Bhagavad Gita, and the Yoga Sutras, combining the significance of the ancient texts with the knowledge and insights of today's practitioners.