Perhaps the root text on modern yoga, the Hatha Yoga Pradipika or “Light on the Yoga of the Sun and Moon,” is grossly under-appreciated today. Written around 1000 AD this is one of the earliest texts that expand on the physical practice of yoga postures and breathing exercises which are only vaguely suggested by the Yoga Sutras of Patanjali. We’ll explore the overall structure of the text and expand on choice verses translated directly from the original Sanskrit source.