Owing to the loss of a seventh book On the Theology of Plato, written by Proclus, copious information respecting the peculiarities of all the celestial Gods is unfortunately not to be obtained. All that can be procured, however, on this subject, and which I have diligently collected from Platonic writings, I shall now present to the philosophic reader, beginning in the first place with the moon. This divinity then has the relation of nature and of a mother with respect to generation, or the sublunary region. For all things are convolved and co-increased by her when she increases; but are diminished when she diminishes. This Goddess, too, benevolently leads into light the unapparent productive principles of nature. She likewise gives perfection to souls through a life according to virtue; but imparts to mortal animals a restitution to form.
Next to the moon is Mercury, who is the cause of symmetry to all mundane natures, having the relation of reason to things in generation. For all symmetry proceeds according to one ratio, and according to number of which this God is the giver. This deity, too, is the inspective guardian of gymnastic exercises; and hence hermæ, or carved statues of Mercury were placed in the Palæstræ; of music, and hence he is honoured as the lyrist (λυραιος) among the celestial constellations; and of disciplines, because the invention of geometry, reasoning and discourse is referred to this God. He presides, therefore, over every species of discipline, leading us to an intelligible essence from this mortal abode, governing the different herds of souls, and dispersing the sleep and oblivion with which they are oppressed. He is likewise the supplier of recollection, the end of which is a genuine intellectual apprehension of divine natures. Hence, among the Athenians, certain images of these things were preserved; grammar having a reference to dialectic discipline; playing on the harp pertaining to music; and wrestling to gymnastic, in which those youths that were well born were instructed.
In the next place follows Venus, who is the cause of beauty to generated natures, which is an imitation of intelligible beauty. This goddess also is the source of the union of form with matter; connecting and comprehending the powers of all the elements; and her principal employment consists in beautifully illuminating the order, harmony, and communion of all mundane concerns. She likewise governs all the co-ordinations in the celestial world and the earth, binds them to each other, and perfects their generative progressions through a kindred conjunction. And she unites and leads into communion the Hermaic production which has a remitted subsistence, and is in subjection to the solar fabrication.
The next celestial divinity in order after Venus is the sovereign Sun, whose essence and dignity are so great, according to the theology of Plato, as to possess a supermundane prerogative among mundane natures. This Plato indicates in the Timæus, when speaking of the sun he says: “In order that these circles might possess a certain manifest measure of slowness and swiftness with reference to each other, and that the motion of the eight circulations might be conspicuous, the divinity enkindled a light which we now denominate the sun, in the second revolution from the earth; that the heavens might become eminently apparent to all things, and that such animals might participate of number as are adapted to its participation, receiving numerical information from the revolution of a nature similar and the same.” On these words Proclus admirably comments as follows: Plato here delivers the one ruling cause of the generation of apparent time. For as the Demiurgus gives subsistence to unapparent time, thus also the sun to the time which is apparent, and which measures the motion of bodies. For through light he leads into visibility every temporal interval, gives bound to all periods, and exhibits measures of restoration to a pristine state. Deservedly, therefore, is the sun a manifest measure, as especially unfolding the progression of time according to number, into the universe. For it has a more accurate period than that of the five planets, its motions being less anomalous than theirs; and also than that of the moon, by always terminating at the same point, its progressions to the north and the south. But if it has a more accurate period, it is deservedly a measure of measures, and from itself bounds the periodic measures of the other planets, and the swiftness of their motions with reference to each other. It also in a greater degree imitates the perpetual permanency of eternity, by always revolving after the same manner. In this way, therefore, it differs from the planets.
After another manner, likewise, the sun is a more manifest measure than the measure of the inerratic sphere. For though this sphere has a certain appropriate measure, a proper interval, and one immutable number of its peculiar motion, yet the solar light causes this measure and all the evolution of apparent time to be manifest and known. Hence Plato says, “In order that there might be a certain manifest measure.” For though there is a certain measure in the other planets, yet it is not clear and manifest. But the sun unfolds into light both other intelligibles and time. You must not however on this account say that the solar light was generated for the sake of measurement. For how is it possible that wholes should subsist for the sake of parts; governing natures for the sake of the governed; and perpetual for the sake of corruptible natures? But we should rather say that light possessing an evolving power unfolds total time, and calls forth its supermundane monad, and one measure into the measurement of the periods of bodies. And this makes time to be, as it were, sensible. Hence, it is the light of the sun which causes every thing that is moved to have a clear and manifest measure. And this indeed is its whole good. After wholes, however, it likewise benefits parts in a secondary degree. For it imparts the generation of number, and measure to the natures which are adapted to participate of these. For irrational beings indeed are destitute of these; but the genera of dæmons who follow the periods of the Gods, and men become partakers of them. The supply of good, therefore, through the solar light, beginning supernally from wholes, descends as far as to parts. And if beginning from visible natures, you are willing to speak of such as are invisible, the light of the sun gives splendor to the whole world, causes a corporeal-formed nature to be divine, and wholly filled through the whole of itself with life. But it leads souls through undefiled light, imparts to them a pure and elevating power, and governs the world by its rays. And it likewise fills souls with empyrean fruits. For the order of the sun is supernally derived from supermundane natures. Hence Plato does not here fabricate the solar light, but says that the Demiurgus enkindled it, as giving subsistence from his own essence to this sphere, and emitting from the solar fountain a life extended into interval and continually renewed. And this also is asserted by theologists concerning the supermundane firmaments.
On this account, it appears to me that Plato delivers a two-fold generation of the sun; one indeed in conjunction with the seven governors of the world, when he fashions the bodies of them, and inserts them in their circulations; but the other according to the enkindling of light, through which he imparts to the sun supermundane power. For it is one thing to generate the bulk of the sun itself by itself, and another in conjunction with a ruling characteristic, through which the sun is called the king of every visible nature, and is established analogous to the one fountain of good. For as this fountain being better than the intelligible essence, illuminates both intellect and the intelligible, thus also the sun being better than a visible nature, illuminates both that which is visible and sight. But if the sun is beyond a visible essence, it will have a supermundane nature. For the world is visible and tangible, and has a body. Hence, we must survey the sun in a twofold respect; viz. as one of the sever planets, and as the leader of wholes; and as mundane and supermundane, according to the latter of which he splendidly emits a divine light. For in the same manner as the good luminously emits truth which deifies the intelligible and intellectual orders; as Phanes in Orpheus sends forth intelligible light which fills with intelligence all the intellectual Gods; and as Jupiter enkindles an intellectual and demiurgic light in all the supermundane Gods; thus also the sun illuminates every thing visible through this undefiled light. The illuminating cause too is always in an order superior to the illuminated natures. For neither is the good intelligible, nor Phanes intellectual, nor Jupiter supermundane. In consequence of this reasoning, therefore, the sun being supermundane emits the fountains of light. And according to the most mystic doctrines, the wholeness of the sun is in the supermundane orders; for in them there is a solar world, and a total light, as the Chaldæan oracles assert, and which I am persuaded is true.
That the stars, however, and the whole of the heavens receive their light from the sun may easily be perceived. For that which is common in many things derives its subsistence from one cause; and in one way indeed from an exempt, but in another from a co-arranged cause. But this cause is that which primarily participates of that form. The primary participant, however, is that in which either primarily or especially this form exists. If, therefore, light especially subsists in the sun, this will be the first light; and from this that which is in other things will be derived.
The Six Books of Proclus, the Platonic Successor, on the Theology of Plato (vol. 2 of 2) · The Wunder Library — complete classics, free to read, with narration.