Why spiritual and supernatural yearnings, even investigations into the occult, flourished in the era of rationalist philosophy. In The Dark Side of the Enlightenment, John V. Fleming shows how the impulses of the European Enlightenment—generally associated with great strides in the liberation of human thought from superstition and traditional religion—were challenged by tenacious religious ideas or channeled into the “darker” pursuits of the esoteric and the occult. His engaging topics include the stubborn survival of the miraculous, the Enlightenment roles of Rosicrucianism and Freemasonry, and the widespread pursuit of magic and alchemy. Though we tend not to associate what was once called alchemy with what we now call chemistry, Fleming shows that the difference is merely one of linguistic modernization.
