The author is known far beyond Germany's borders as one of the most experienced researchers and practitioners in all areas of esotericism. Anyone who conscientiously studies this volume and the subsequent work "Magical Practice" will gain an almost comprehensive knowledge of what there is to know in the field of esotericism, mysticism and magic in order to perform occult workings successfully. A brief selection of the topics covered will make this clear: breathwork, body and mind control, transmutation of the power of procreation, chakras, mantramistics, psychodynamics and magical training, suggestion and hypnosis, dream exercises and expansion of consciousness.