Note 209:2 — SALLUSTIUS 'ON THE GODS AND THE WORLD'[200-1]
Reading edition
Proclus, Elem. Theol. xx, calls it ἡ νοερὰ φύσις, Natura Intellectualis. There are four degrees of existence: lowest of all, Bodies; above that, Soul; above all Souls, this 'Intellectual Nature'; above that, The One.