In the present prefatory words I propose to shew, firstly, the nature of Éliphas Lévi’s personal claims, so that there may be no misconception as to what they were actually, and as to the kind of voice which is speaking; secondly, his original statement of the claims, nature and value of Transcendental Magic; and, thirdly, his later evidences on its phenomenal or so-called practical side, as established by its own history.