With this book we continue to look at subjects of Gnostic and Hermetic interest previously left unexplored from the metaphysical point of view. This includes arcane matters such as the Evil Genius, Psychic Residues, and Telesmata and Familiar Spirits. A lengthy chapter is devoted to Alexandrian Gnosticism. Part Two, 'Yoga Power', is a continuation of our very practical instruction on the Raja Yoga of Patanjali that took up a large part of Thunder Perfect Gnosis. We now go more deeply into intellective process, devotional practice (bhakti) and concentration of the mind. The advanced levels of Samyama Yoga are now disclosed, revealing an exact traditional science. The book concludes with the Supernormal Powers, of which almost nothing is known in the West, including Knowledge of the Past and Future, Knowledge of the Language of all Beings, Knowledge of Previous States of Existence, How to Read Minds, Invisibility and more.