Enneads III.9: Fragments About the Soul, the Intelligence, and the Good
By Its Power, the One Is Everywhere
4. How does manifoldness issue from Unity? Unity is everywhere; for there is no place where it is not; therefore it fills everything. By Him exists manifoldness; or rather, it is by Him that all things exist. If the One were only everywhere, He would simply be all things; but, as, besides, He is nowhere, all things exist by Him, because He is everywhere; but simultaneously all things are distinct from Him, because He is nowhere. Why then is Unity not only everywhere, but also nowhere? The reason is, that Unity must be above all things, He must fill everything, and produce everything, without being all that He produces.
5. The soul's relation to intelligence is the same as that of sight to the visible object; but it is the indeterminate sight which, before seeing, is nevertheless disposed to see and think; that is why the soul bears to intelligence the relation of matter to form.