Sir John George Woodroffe (1865-1936), also known by his pseudonym Arthur Avalon, was a British Orientalist whose work helped to unleash in the West a deep and wide interest in Hindu philosophy and Yogic practices. Woodroffe's The Serpent Power - The Secrets of Tantric and Shaktic Yoga, is a source for many modern Western adaptations of Kundalini yoga practice. It is a philosophically sophisticated commentary on, and translation of, the Satcakra-nirupana ("Description of and Investigation into the Six Bodily Centres") of Purnananda (dated c.AD 1550) and the Paduka-Pancaka ("Five-fold Footstool of the Guru"). The term "Serpent Power" refers to the kundalini, an energy said to be released within an individual by meditation techniques.