Studies of the Kabbalah in English were virtually unknown before the occult revival of the second half of the 19th century, and those that did appear were largely dry and academic. The more astute students of the Kabbalah recognized that it had an application outside Judeo-Christian mysticism and related it to the wider current of the Western Mystery Tradition, especially to Rosicrucianism and Freemasonry. A graduate of Harvard Divinity School, William...