Besides the above, the soul possesses the discursive reason, which judges of SENSE-REPRESENTATIONS, combining and dividing them. Under the form of images, she also considers the conceptions received from intelligence, and operates on these images as on images furnished by sensation. Finally, she still is the power of understanding, since she distinguishes the new images from the old, and harmonizes them by comparing them; whence, indeed, our reminiscences are derived. (Ennead V,3 (49) 2)
We must, therefore, acknowledge the existence first of Good, unmixed, and then the nature mingled of good and evil; but what most participates in evil thereby trends towards absolute Evil; and what participates in it to a less degree thereby trends towards good. For what is evil to soul? It is being in contact with inferior nature; otherwise the soul would not have any appetite, pain, or fear. Indeed fear is felt by us only for the composite (of soul and body), fearing its dissolution, which thus is the cause of our pains and sufferings. The end of every appetite is to put aside what troubles it, or to forestall what might do so. As to SENSE-REPRESENTATIONS (fancy), it is the impression made by an exterior object on the irrational part of the soul, a part which can receive this impression only because it is not indivisible. False opinion rises within the soul because it is no longer within truth, and this occurs because the soul is no longer pure. On the contrary, the desire of the intelligible leads the soul to unite intimately with intelligence, as she should, and there remain solidly entrenched, without declining towards anything inferior. It is only because of the nature and power of the Good that evil does not remain pure Evil. (Matter, which is synonymous with evil) is like a captive which beauty covers with golden chains, so that the divinities might not see its nakedness, and that men might not be intruded on by it; or that men, if they must see it, shall be reminded of beauty on observing an even weakened image thereof. (Ennead I,8 (51) 15)