Again, it follows in addition to what has been said, that we should separate all the assimilative powers, properly arrange them, and survey them proceeding about the one essence of the Gods. Plato, therefore, asserts that the first and most ruling of these powers, are those that unfold the intellectual production of the father, and expand it to all the divided orders of beings. But that the second, are those which are connective of wholes, and which preserve one series and indissoluble connexion of the divine progressions. And that the third, are those which are the primary leaders of perfection to all secondary natures, and produce through similitude self-perfect conversions to principles. But next to these he arranges those powers that extend all the proceeding genera of the Gods to impartible monads, and which pre-exist as the collectors of partible natures. Farther still, he likewise asserts that other assimilative powers give subsistence to the divided genera, and are definitely the suppliers of existence and essence to first and last natures. And besides all these, that other powers are the causes of undefiled distribution, and of perpetually stable perfection.
Moreover, together with these, I should arrange the authors of prolific production, and those that pour upon and distribute to all secondary natures the partible rivers of life. And farther still, after these, I should arrange the powers that elevate secondary beings, cut off every thing material, confused, and inordinate, and are the suppliers of all goods. For there is no one of all the beautiful things in the world that does not proceed from this order of Gods, which fills its participants with divine goods. Or whence indeed is the world always established in its proper principles, whence does its circulation remain immutable, and whence is the universe connected by indissoluble bonds? For the ends of its periods become the principles of the subsequent revolutions. But the circle of generation imitates the invariable supply of the celestial orbs, and all things are converted to more divine natures. Matter, indeed, is assimilated to beings, through the last representations of the production of form. But that which is moved in a confused and disordered manner, is circularly led to order and bound by demiurgic reasons, being assimilated to natures which always subsist with invariable sameness and permanency. Things, however, which are borne along in a diversified generation, and multiform mutations, are assimilated to the celestial orbs, and being moved in an all-various manner, follow the revolutions of the heavenly bodies. But the convolutions of the heavens, represent as in images the psychical periods; and the circulations of the spheres inscribe as it were the intellections of the celestial souls. Time itself, likewise, which proceeds according to number, and forms a circular dance, is in a certain respect assimilated to stable intellections, and to [eternity] the measure of all intelligibles. For the whole of this time was generated an image of eternity abiding in one, since it is evolved after the same manner according to number. All things, therefore, are allotted a progression into existence, and the distribution of perfection according to measure, from the assimilative leaders, and connect the essence of themselves through similitude.
Moreover, this order of Gods in a particular manner, presides over the sympathy of things in the world, and their communion with each other. For all things concur with each other through similitude, and communicate the powers which they possess. And first natures, indeed, impart by illumination the gift of themselves to secondary natures, in unenvying abundance. But effects are established in their causes. An indissoluble connexion, likewise, and communion of wholes, and a colligation of agents and patients, are surveyed in the world. For in effects their generative causes subsist through similitude. And in causes, the progeny that proceed from them are contained according to comprehension. All things, likewise, are in each other, and similitude is the collector of all things. On this account, also, celestial, impart to sublunary natures, an exuberant and unenvying communication of their own effluxions; but sublunary, being in a certain respect assimilated to celestial natures, participate of an appropriate perfection. A chain likewise extends from on high, as far as to the last of things, secondary, always expressing the powers of the natures prior to them, progression indeed diminishing the similitude, but all things at the same time, and even such as most obscurely participate of existence, bearing a similitude to the first causes, and being co-passive with each other, and with their original causes. For there is naturally a two-fold similitude in things which have proceeded from their causes. For they are assimilated to each other, according to their progression from the one, and their conversion again to it, and they are also assimilated to their ruling and first-effective causes. And through the former similitude, indeed, the elements conspire, are connascent, and are mingled with each other. But through the latter, they hasten to their proper principles, and are conjoined with their paradigms. On this account, all things which participate of the solar effluxion, are suspended from the circulation of the sun; I mean, not only the genera that are more excellent than us, but likewise the number of souls, animals, plants, and stones. But all things adhere to the Mercurial circulation, which receive the peculiarity of this God. And the like takes place in the other [mundane] Gods. For all of them are leaders and rulers in the universe. And many orders indeed of angels dance round them; many numbers of demons; many herds of heroes; the copious multitude of partial souls; the multiform genera of mortal animals; and the various powers of plants. And all things indeed aspire after their leaders, and in all things there is an impression of their proper monad; but in some this impression is more clear, and in others more obscure; since similitude also subsists in a greater degree, in the first progeny, but is obscured in the middle, and last progeny, according to the ratio of progression. Images, therefore, and paradigms, are allotted their hypostasis on account of collective similitude. And every thing on account of similitude is familiar to itself, and to co-ordinate natures. But there is an unshaken friendship between the co-ordinate natures in the world through the presence of similitude; since contraries, also, and things which are most distant from each other, are irreprehensibly bound through it, and connected so as to produce the perfection of the universe.
In short, therefore, we may say, that the assimilative leaders of wholes, produce and generate all things from themselves. For progressions are through similitude; and every thing which is constituted, is wont to be assimilated to its generative cause. The assimilative rulers also convert all things to their principles; for every conversion is through similitude. They likewise bind co-ordinate natures to each other. For the communion of the one cause [of all] produces similitude indeed in its participants, but from this, it inserts in them an indissoluble connexion. They also cause all things to sympathize, be friendly, and familiar with each other; exhibiting indeed, through participation, more elevated in more abject natures; but subordinate in more perfect essences, through causal comprehension. They likewise extend series and periods from on high, as far as to the last of things. And they produce monads indeed, into diminution, through appropriate numbers; but collect multitudes into union, through communion according to essence. They also adapt wholes to parts; but comprehend parts in wholes. And things imperfect, indeed, they perfect, through contact with ends; but they guard immutably perfect natures, through a similar cause. They likewise lead into definite order, by similar forms and reasons, the sea of dissimilitude; but they terminate the very-mutable generation of sublunary natures, by stable paradigms. Thus much, therefore, we have to say in common concerning the order of divine natures, which we assert to be proximate indeed to the intellectual Gods, but to be the leader, and cause of the assimilation of all secondary natures to their proper principles.
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.