A book whose text was published as a private press already in the thirties of the 20th century. It represents the first creative synthesis of František Bardon, an excellent connoisseur of ritual magic and hermeticism. It is an initiatory work that enables those interested to obtain uniform hermetic training, to understand the basic theory and also to develop hermetic practice. After mature experience, the author selected such sources from world literature, the combination of which would show his students the direction of the necessary inner development, not only its beginning, but also the main steps of mystical and magical practice.