Neither Sivananda, nor Ramacharaka, nor Yogananda, among many other treatise writers of yogism, ever exhibited so accurately and clearly as seen in this work, the supreme keys for the preparation of the physical body in order to experience the various possibilities offered by the hyperdimensional space. Samael Aun Weor reveals in detail the ins and outs that make up the authentic ancestral yogic discipline in order to lead the devotees of the real path toward the verification of the Superior Worlds.