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THIS book is intentionally not the work of Brother Perdurabo Latin: Frater Perdurabo, the magical motto of Aleister Crowley, meaning "I will endure to the end.". Experience shows that his writing is too concentrated, too obscure, and too hidden original: "occult" for ordinary minds to understand. It is thought that this record of disjointed fragments of his casual conversation may prove to be both more intelligible and more convincing. At the very least, it should provide a preliminary study which will enable the student to approach his real work from a position of some general knowledge and an understanding of his ideas, as well as the symbols original: "form" in which he represents them.
Part II, “Magick,” is more advanced in style than Part I; the student is expected to know a little of the literature of the subject and to be able to take an intelligent view of it. This part is, however, truly explanatory of Part I, which is only a rough, preliminary sketch.
If both parts are thoroughly studied and understood, the pupil will have obtained a real grasp of all the fundamentals and essentials of both Magick and Mysticism.
I wrote this book down from Brother Perdurabo’s dictation at the Villa Caldarazzo, Posilippo, Naples, where I was studying under him.