Rarely in the history of Western culture has there been more interest in the supernatural. Hollywood churns out movies and TV shows that deal with otherworldly themes at a rate that is unprecedented. Studies and surveys confirm that despite the growing influence of science and philosophical materialism (the idea that the material world is all that there is) belief in a spiritual world is, if anything, on the rise. But while belief in the supernatural is strong, any type of consensus about what the metaphysical world is like is on the wane. ...