Hygienic Clairvoyance is a book written by John Melville that explores the concept of using clairvoyance for maintaining good hygiene. The book delves into the idea that clairvoyance can be used to perceive and understand the state of an individual's physical and emotional health, and how this understanding can be used to promote good hygiene practices. Melville discusses various techniques and exercises that can be used to develop one's clairvoyant...