In the soul weakness does not derive from an excess of density or rarefaction of leanness or stoutness, nor of any sickness such as fever. It must be met in souls which are either entirely separated from matter, or in those joined to matter, or in both simultaneously. Now, as it does not occur in souls separated from matter, which are entirely pure, and "winged,"[193] and which, as perfect, carry out their functions without any obstacle; it remains, that this weakness occurs in fallen souls, which are neither pure nor purified. For them weakness consists not in the privation of anything, but in the presence of something alien, just as, for instance, weakness of the body consists in the presence of slime or bile. We shall, therefore, be able to understand clearly the weakness of the soul by ferreting out the cause of the "fall" of the soul.
THE FALL OF THE SOUL AS DESCENT INTO MATTER.
Just as much as the soul, matter is included within the order of beings. For both, so to speak, there is but a single locality; for it would be an error to imagine two different localities, one for matter, and the other for the soul; such as, for instance, earth might be for matter, and air for the soul. The expression that "soul occupies a locality different from matter" means only that the soul is not in matter; that is, that the soul is not united to matter; that the soul does not together with matter constitute something unitary; and that for the soul matter is not a substrate that could contain the soul. That is how the soul is separated from matter. But the soul possesses several powers, since she contains the principle (intelligence), the medium (the discursive reason), and the goal (the power of sensation) (united to the generative and growing powers). Now, just like the beggar who presents himself at the door of the banquet-hall, and with importunity asks to be admitted,[194] matter tries to penetrate into the place occupied by the soul. But every place is sacred, because nothing in it is deprived of the presence of the soul. Matter, on exposing itself to its rays is illuminated by it, but it cannot harbor the principle that illuminates her (the soul). The latter indeed, does not sustain matter,[195] although she be present, and does not even see it, because it is evil. Matter obscures, weakens the light that shines down upon her, by mingling its darkness with her. To the soul, matter affords the opportunity of producing generation, by clearing free access towards matter; for if matter were not present, the soul would not approach it. The fall of the soul is, therefore, a descent into matter; hence comes her "weakness," which means, that not all of the soul's faculties are exercised; because matter hinders their action, intruding on the place occupied by the soul and forcing her, so to speak, to retrench. Until the soul can manage to accomplish her return into the intelligible world, matter degrades what it has succeeded in abstracting from the soul. For the soul, therefore, matter is a cause of weakness and vice. Therefore, by herself, the soul is primitively evil, and is the first evil. By its presence, matter is the cause of the soul's exerting her generative powers, and being thus led to suffering; it is matter that causes the soul to enter into dealings with matter, and thus to become evil. The soul, indeed, would never have approached matter unless the latter's presence had not afforded the soul an opportunity to produce generation.
NO MORE THAN THE EXISTENCE OF THE GOOD CAN THAT OF MATTER BE DENIED.
15. Those who claim that matter does not exist, will have to be referred to our extended discussion[196] where we have demonstrated the necessity of its hypostatic existence. Those who would assert that evil does not belong among beings would, if logical, thereby also deny the existence of the good, and of anything that was desirable; thereby annihilating desire, as well as aversion, and even thought; for everybody shares desire for the good, and aversion for the evil. Thought and knowledge, simultaneously, apply to good and evil; thought itself is a good.
EXPLANATION OF THE EVIL OF THE SOUL.
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[197]), 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.