5. If, we were to conclude that there were no matter in intelligible entities, because they were immutable, and because, in them, matter is always combined with (shape), we would be logically compelled to deny the existence of matter in bodies; for the matter of bodies always has a form, and every body is always complete (containing a form and a matter). Each body, however, is none the less composite, and intelligence observes its doubleness; for it splits until it arrives to simplicity, namely, to that which can no longer be decomposed; it does not stop until it reaches the bottom things. Now the bottom of each thing is matter. Every matter is dark, because the reason (the form) is the light, and because intelligence is the reason.[284] When, in an object, intelligence considers the reason, it considers as dark that which is below reason, or light. Likewise, the eye, being luminous, and directing its gaze on light and on the colors which are kinds of light, considers what is beneath, and hidden by the colors, as dark and material. INTELLIGIBLE MATTER CONSISTS OF REAL BEING, ESPECIALLY AS SHAPED. Besides, there is a great difference between the dark bottom of intelligible things and that of sense-objects; there is as much difference between the matter of the former and of the latter as there is between their form. The divine matter, on receiving the form that determines it, possesses an intellectual and determinate life. On the contrary, even when the matter of the bodies becomes something determinate, it is neither alive nor thinking; it is dead, in spite of its borrowed beauty.[285] As the shape (of sense-objects) is only an image, their substrate also is only an image. But as the shape (of intelligible entities) possesses veritable (reality), their substrate is of the same nature. We have, therefore, full justification for calling matter "being," that is, when referring to intelligible matter; for the substrate of intelligible entities really is "being," especially if conceived of together with its inherent (form). For "being" is the luminous totality (or complex of matter and form). To question the eternity of intelligible matter is tantamount to questioning that of ideas; indeed, intelligible entities are begotten in the sense that they have a principle; but they are non-begotten in the sense that their existence had no beginning, and that, from all eternity, they derive their existence from their principle. Therefore they do not resemble the things that are always becoming, as our world; but, like the intelligible world, they ever exist. THE CATEGORIES OF MOVEMENT AND DIFFERENCE APPLIED TO INTELLIGIBLES. The difference that is in the intelligible world ever produces matter; for, in that world, it is the difference that is the principle of matter, as well as of primary motion. That is why the latter is also called difference, because difference and primary motion were born simultaneously.[286]