_c._ _Vayu._ Extension. (Air.) _d._ _Taijas._ Energy. Intensity. (Fire.) _e._ _Akâsa._ The one _Tattwa_ forming the basis of the rest. (Sound.)[23] The limitation of space in these pages, no less than the insufficiency of our experience in regard to this subject, forbids us to enter into a closer investigation of the relations existing between this aspect of Alchemy and physical chemistry; but we have reason to affirm, that we are on the eve of great discoveries, which will to a certain extent revolutionize the popular chemistry of the present day. _Celestial Alchemy._—Even if it were within our power to describe the secrets of celestial alchemy, by means of which the universe was created and which includes the regeneration of man and the attainment of conscious immortality, and if this could be done publicly without profaning those mysteries, the explanation would probably be comprehensible only to those who, knowing it already, do not require it. Those who wish to investigate this subject for the love of wisdom will find the whole process fully described symbolically in “The Secret Symbols of the Rosicrucians of the 16th and 17th Century,”[24] a book easily comprehensible if studied by the light of wisdom, but unintelligible for the carnal mind, that sees all truths perverted. Some explanations have also been attempted in the book entitled “In the Pronaos of the Temple.”[25] We will only say that there the _Three Substances_ appear as the _Three Beginnings_; the first manifestation of the Unity as a Trinity, and the Seven _Tattwas_ as the seven primitive spirits,[26] or “living breaths” issuing from the bosom of Parabrahm.[27] The Universe is the _Macrocosm_, and Man the _Microcosm_, and as the first great Cause is the creator of the world and the cause of all evolution, so is individual man the creator in his own interior and external world, capable of causing certain superior states in his mind by the power of his will in obedience to the law, and to create forms by means of his thoughts, while the condition of his interior state will in time produce corresponding effects and transmutation in his physical body. Well will it pay him to devote all his time to this practice of Alchemy and obtain the pure gold of wisdom from the inferior metals represented by his animal passions. These passions are the capital lent to him by nature to make them into “silver and gold,” while he lives upon this earth: they are the steps upon which he can climb up to immortality and find his own true divine Self.