What exactly is yoga, and how did it evolve from transcending the world to a global industry worth billions of dollars? This workshop explores where yoga comes from, and how its practice relates to philosophy over the centuries. We begin with ancient texts, tracing the development of yogic teachings, and seeing how ascetics from different traditions exchanged ideas. We then focus in depth on the physical practice known as hatha, and see how priorities changed to transforming the body, eventually developing into modern forms of yoga.