THUS, then, as the one sun among things visible lights the whole Cosmos of sense, so also among the things of thought the one perfect Word of God gives light to the immortal and unembodied powers, the myriad existences of mind and reason, like stars and founts of light. And since it behoved that the law over all through the Universe, and the Word of God in all and reaching through all, should be one, so that in Him the likeness to the Father even in all respects might be preserved, in virtue, in power, in essence, in the number of the Monad and the Unit, since the essence of things about to be begotten would be of many forms and many kinds, subject through weakness of nature to many changes and variations, one at one time, another at another, and would fail of the highest power of the Father through the exceeding greatness of His nature inexpressible and infinitely vast to all, and fated for ever being itself but a begotten thing to be unable to mingle with the unbegotten and incomprehensible Godhead, or to look up and gaze upon the unspeakable flashings pouring out from the eternal light, it was above all necessary that the Father all-good and the Saviour of the Universe, that the nature of things soon to be might not in exile from His fellowship be deprived of the greatest good, should interpose the divine, all-strong, and all-virtuous power of His only-begotten and first-born Son. For though He was in the most certain and the closest association with the Father, and equally with Him rejoiced in that which is unspeakable, yet He could descend with all gentleness, and conform Himself in such ways as were possible, to those who were far distant from His own height, and through their weakness crave amelioration and aid (d) from a secondary Being, that they might behold the flashings of the sun falling quietly and gently on them, though they are not able to delight in the fierce might of the sun because of their bodily weakness.