Sir John George Woodroffe , also known by his pseudonym Arthur Avalon, was a British Orientalist whose extensive and complex published works on the Tantras, and other Hindu traditions, stimulated a wide-ranging interest in Hindu philosophy and yoga.
Alongside his judicial duties he studied Sanskrit and Hindu philosophy and was especially interested in Hindu Tantra. He translated some twenty original Sanskrit texts and, under his pseudonym Arthur Avalon, published and lectured prolifically on Indian philosophy and a wide range of Yoga and Tantra topics. T.M.P. Mahadevan wrote: "By editing the original Sanskrit texts, as also by publishing essays on the different aspects of Shaktism, he showed that the religion and worship had a profound philosophy behind it, and that there was nothing irrational or obscurantist about the technique of worship it recommends."
''The Serpent Power'' and ''The Garland of Letters''
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 of Purnananda and the Paduka-Pancaka. The term "Serpent Power" refers to the kundalini, an energy said to be released within an individual by meditation techniques. Woodroffe's Garland of Letters expounds the "non-dual" philosophy of Shaktism from a different starting point, the evolution of the universe from the supreme consciousness. It is a distillation of Woodroffe's understanding of the ancient Tantric texts and the philosophy. He writes: "Creation commences by an initial movement or vibration in the Cosmic Stuff, as some Western writers call it, and which in Indian parlance is Saspanda Prakriti-Sakti. Just as the nature of Cit or the Siva aspect of Brahman is rest, quiescence, so that of Prakrti is movement. Prior however to manifestation, that is during dissolution of the Universe Prakrti exists in a state of equilibrated energy.... It then moves... his is the first cosmic vibration in which the equilibrated energy is released. The approximate sound of this movement is the mantra Om."
Mahānirvāṇatantraṃ
Woodroffe translated the Mahānirvāṇatantraṃ from the original Sanskrit into English under his nom-de-plume of Arthur Avalon: a play on the magical realm of Avalon and the young later-to-be, King Arthur, within the story-cycle of tales known generally as King Arthur and the Knights of the Round Table; specifically according to Taylor, Woodroffe chose the name from the noted incomplete magnum opus, the painting 'Arthur's Sleep in Avalon' by Burne-Jones. Moreover, Taylor conveys the salience of this magical literary identity and contextualises by making reference to western esotericism, Holy grail, quest, occult secrets, initiations and the Theosophists:
"This is quite important to know, for here we have a writer on an Indian esoteric system taking a name imbued with western esotericism. The name at any rate seems to hint at initiations and the possession of occult secrets. The Arthurian legends are bound up with the story of the Holy Grail and its quest. This was a symbol of esoteric wisdom, especially to Theosophists who appropriated the legend. Anyone who named himself after King Arthur or the mystic isle of Avalon would be thought to be identifying himself with occultism, in Theosophists' eyes."
The Mahānirvāṇatantraṃ is an example of a nondual tantra and the translation of this work had a profound impact on the Indologists of the early to mid 20th century. The work is notable for many reasons and importantly mentions four kinds of Avadhuta.