Then if the Reasoning-Faculty too has taken hurt, the Soul’s seeing is baulked by the passions and by the darkening that Matter brings to it, by its decline into Matter, by its very attention no longer to Essence but to Process — whose principle or source is, again, Matter, the Kind so evil as to saturate with its own pravity even that which is not in it but merely looks towards it.
For, wholly without part in Good, the negation of Good, unmingled Lack, this Matter-Kind makes over to its own likeness whatsoever comes in touch with it.
The Soul wrought to perfection, addressed towards the Intellectual-Principle, is steadfastly pure: it has turned away from Matter; all that is undetermined, that is outside of measure, that is evil, it neither sees nor draws near; it endures in its purity, only, and wholly, determined by the Intellectual-Principle.
The Soul that breaks away from this source of its reality to the non-perfect and non-primal is, as it were, a secondary, an image, to the loyal Soul. By its falling-away — and to the extent of the fall — it is stripped of Determination, becomes wholly indeterminate, sees darkness. Looking to what repels vision, as we look when we are said to see darkness, it has taken Matter into itself.