The Yoga Sutras of Patanjali, a foundational Yoga text, forms part of the corpus of Sutra literature dating back to India's Mauryan period. The purpose of this text is to reveal the practical means for the birth of the spiritual being from the psychical body and to indicate the glory and power of this rebirth. In this text, writer, journalist and theosophist, Charles Johnston sets forth Patanjali's instructions in an understandable manner, so as to make his learnings accessible to all.