Man is a little world—a microcosm inside the great universe. Like a fœtus, he is suspended, by all his three spirits, in the matrix of the macrocosmos; and while his terrestrial body is in constant sympathy with its parent earth, his astral soul lives in unison with the sidereal anima mundi. He is in it, as it is in him, for the world-pervading element fills all space, and is space itself, only shoreless and infinite. As to his third spirit, the divine, what is it but an infinitesimal ray, one of the countless radiations proceeding directly from the Highest Cause—the Spiritual Light of the World? This is the trinity of organic and inorganic nature—the spiritual and the physical, which are three in one, and of which Proclus says that “The first monad is the Eternal God; the second, eternity; the third, the paradigm, or pattern of the universe;” the three constituting the Intelligible Triad. Everything in this visible universe is the outflow of this Triad, and a microcosmic triad itself. And thus they move in majestic procession in the fields of eternity, around the spiritual sun, as in the heliocentric system the celestial bodies move round the visible suns. The Pythagorean Monad, which lives “in solitude and darkness,” may remain on this earth forever invisible, impalpable, and undemonstrated by experimental science. Still the whole universe will be gravitating around it, as it did from the “beginning of time,” and with every second, man and atom approach nearer to that solemn moment in the eternity, when the Invisible Presence will become clear to their spiritual sight. When every particle of matter, even the most sublimated, has been cast off from the last shape that forms the ultimate link of that chain of double evolution which, throughout millions of ages and successive transformations, has pushed the entity onward; and when it shall find itself reclothed in that primordial essence, identical with that of its Creator, then this once impalpable organic atom will have run its race, and the sons of God will once more “shout for joy” at the return of the pilgrim.
“Man,” says Van Helmont, “is the mirror of the universe, and his triple nature stands in relationship to all things.” The will of the Creator, through which all things were made and received their first impulse, is the property of every living being. Man, endowed with an additional spirituality, has the largest share of it on this planet. It depends on the proportion of matter in him whether he will exercise its magical faculty with more or less success. Sharing this divine potency in common with every inorganic atom, he exercises it through the course of his whole life, whether consciously or otherwise. In the former case, when in the full possession of his powers, he will be the master, and the magnale magnum (the universal soul) will be controlled and guided by him. In the cases of animals, plants, minerals, and even of the average of humanity, this ethereal fluid which pervades all things, finding no resistance, and being left to itself, moves them as its impulse directs. Every created being in this sublunary sphere, is formed out of the magnale magnum, and is related to it. Man possesses a double celestial power, and is allied to heaven. This power is “not only in the outer man, but to a degree also in the animals, and perhaps in all other things, as all things in the universe stand in a relation to each other; or, at least, God is in all things, as the ancients have observed it with a worthy correctness. It is necessary that the magic strength should be awakened in the outer as well as in the inner man. . . . And if we call this a magic power, the uninstructed only can be terrified by the expression. But, if you prefer it, you can call it a spiritual power—spirituale robur vocitaveris. There is, therefore, such magic power in the inner man. But, as there exists a certain relationship between the inner and the outer man, this strength must be diffused through the whole man.”
H.P. Blavatsky Isis Unveiled Book 1 page. 214