Intellect. A concept derived from the writings of Greek philosopher Plotinus (circa 204-270 A.D.). For the Desert Fathers, nous is the highest faculty of human beings, through which they know God (or the inner essences or principles of created things) by means of direct experience or spiritual perception. Unlike “diamoia” (reason), from which it must be carefully distinguished, the intellect of the Heart does not function by formulating abstract concepts and then coming to a conclusion reached through deductive reasoning. Instead, it understands divine truth by means of immediate experience, intuition, or simple cognition (the term used by St. Isaac the Syrian). Nous (the intellect), dwells in the “depths of the soul.” It constitutes the innermost aspect of the Heart. The intellect is the organ of contemplation, “the Eye of the Heart.”