We may be told to hate the sin and love the sinner, but sin is abstract and incorporeal.
Intelligible entities are incorporeal and without extension.
Therefore, it is nonspatial pure incorporeal light".
More specifically, it is the tenth and lowest of the incorporeal Intelligences in the philosopher's cosmology, which presides over the sub-lunar sphere and all it contains.
In the Pythagorean Memoirs, Pythagoras is said to have adopted the Monad and the Indefinite Dyad as incorporeal principles, from which arise first the numbers, then plane and solid figures and finally the bodies of the sensible world (Diogenes Laertius VIII. 25).
As an example of the latter, he mentions questions about the ontological status of genera and species whether they exist or depend on thought; and if they exist, whether they are bodies or incorporeal; and if the latter, whether they are sensible items or exist separately from such.
The infinity of space and the existence of a vacuum were maintained by the ancient atomists, and, as noted, the centrality of light as an intermediary level between the corporeal and incorporeal has solid roots in the Platonic tradition.
Leaving aside intellectual demonstration, which occurs when an object is incorporeal or absent (see §8), we can note that the use of a demonstrative pronoun in normal circumstances has the implication that the object pointed to must be present to the speaker.
We have two works by al-Kindi devoted to the ontology of the human soul: That There are Incorporeal Substances and Discourse on the Soul.
That There are Incorporeal Substances (Abu Rida 1950, 265 69, Adamson and Pormann 2009) is a creative application of ideas from Aristotle's Categories to the problem of showing that the human soul is an immaterial substance.
