Lewis stays within the context of much of occult theorization and literature when he claims that all substance in the known perceivable universe can be said to be understood as One Source undergoing different rates of vibration. He says these vibrations move in cycles, both static and kinetic (non-moving and moving). Of course, these vibrations exist in time- or else they would not be measurable. Thus, the universe of events does conform to the marking of time in which there is a certain definable order, whereas, he points out, psychic events, as transpiring in dreams or visions, does not necessarily occur in time- in fact, may be altogether outside of time.
            In one of his talks recorded in P.D. Ouspensky’s In Search of the Miraculous, Gurdjieff says-

One of the most central idea of objective knowledge…. is the idea of the unity of everything, of unity in diversity. From ancient times people who have understood the content and meaning of this idea and have seen in it the basis of objective knowledge have endeavored to find a way of transmitting this idea in a form comprehensible to others.

            This concept of One Source or Substance in the perceivable universe vibrating at different rates to create diversity is certainly not confined to AMORC and is resident in all occult traditions. But in propounding this concept of unity in diversity, Gurdjieff speaks of a tradition of alchemy, astrology and magical symbolism, as well as Cabala, which can accurately explain this concept of unity and the laws governing diversity. But he also says-

But in the hands of the incompetent and the ignorant, however full of good intentions, the same symbol becomes an ‘instrument of delusion.’

            I can only see as far as I have experienced in life- but, in AMORC, I have participated in all the greater and lesser initiations and I do not believe that the Order has conveyed any profound understanding of the universe as based on vibrations. It is true that this book does not pretend to convey real inner knowledge, saying that is reserved for the Rosicrucian teachings- but I can say this, the information in this book is probably more of a key to the actual practice of the Rosicrucian teachings as implemented in AMORC’s Lodges than an esoteric cosmology developed in the monographs and secret “initiations.”
            The reality is that the teachings of unity in diversity in a true esoteric tradition are based on the correspondence between the consciousness of God (or Cosmic Consciousness in AMORC’s Rosicrucian framework) and the consciousness of man.
            The key to a real esoteric tradition could be summarized by the Socratic mandate, “Know Thyself” and the deep knowledge of diversity could be summarized by the phrase from the Tablets of Hermes Trismegistus as admirably put: As Above, So Below” or even in the Christian tradition, “On Earth as it is in Heaven.”
            Without this focus on the development of consciousness and character, any system propounding to reveal the true secrets of the universe generally follows its own secret, but unprofound agenda, spinning out a story based on certain ideas, symbols and “spiritual direction,” but, at base, just creating a vast, powerful delusion for profit, attention and perhaps a sense of power.