The Six Books of Proclus on the Theology of Plato, Volume 1

With respect to what remains therefore, we shall summarily say, that the supercelestial place is the first triad of the intelligible and at the same time intellectual Gods, possessing three peculiarities, the unfolding into light, the collective, and the defensive. It likewise comprehends all these intelligibly, and in an unknown manner, conjoining indeed intellectuals to intelligibles, but calling forth the prolific powers of intelligibles, receiving in itself the plenitude of forms from the intelligible paradigms, and producing its own meadow from the fontal summit which is there. But from the one intellect it gives subsistence to the three virtues, perfects all itself by intelligible impressions, and in its ineffable bosoms receives the whole of intelligible light. At one and the same time also it abides in the occult nature of the intelligible Gods, and proceeds intelligibly from thence, shines forth to the view of intellectuals, and converts and draws upward by ineffable powers all the images of its proper union which it has disseminated in every thing. To this place likewise it is necessary that we should mystically approach, leaving in the earth all the generation-producing life, and the corporeal nature, with which on coming hither we were surrounded as with a wall, but exciting alone the summit of the soul to the participation of total truth, and the plenitude of intelligible nutriment.