Abramelin's Book of Magic is one of the most famous and mysterious grimoires of the Renaissance. It details how to achieve full contact with your guardian angel, which means to comprehend yourself and the Divine in yourself. After that, a person acquires real power both over himself and over the forces of darkness and light. The advantage of the book is a detailed description of the technology. It is of tremendous value both for magicians and for people who have devoted themselves to spiritual development.