4. Granting now the existence of ideas, whose reality has been demonstrated elsewhere,[283] we must draw their legitimate consequences. Necessarily ideas have something in common, inasmuch as they are manifold; and since they differ from each other, they must also have something individual. Now the individuality of any idea, the difference that distinguishes it from any other, consists of its particular shape. But form, to be received, implies a substrate, that might be determined by the difference. There is therefore always a matter that receives form, and there is always a substrate (even in ideas, whose matter is genus, and whose form is its difference). RELYING ON THE PUN BETWEEN WORLD AND ADORNMENT, PLOTINOS CONCLUDES THAT IF THE INTELLIGIBLE WORLD BE THE IMAGE OF THIS, IT MUST ALSO BE A COMPOSITE OF FORM AND MATTER. Besides, our world is an image of the intelligible world. Now as our world is a composite of matter (and form), there must be matter also on high (that is, in the intelligible world). Otherwise, how could we call the intelligible world "kosmos" (that is, either world, or adornment), unless we see matter (receiving) form therein? How could we find form there, without (a residence) that should receive it? That world is indivisible, taken in an absolute sense; but in a relative sense, is it divisible? Now if its parts be distinct from each other, their division or distinction is a passive modification of matter; for what can be divided, must be matter. If the multitude of ideals constitute an indivisible being, this multitude, which resides in a single being, has this single being as substrate, that is, as matter and is its shapes. This single, yet varied substrate conceives of itself as shapeless, before conceiving of itself as varied. If then by thought you abstract from it variety, forms, reasons, and intelligible characteristics, that which is prior is indeterminate and shapeless; then there will remain in this (subject) none of the things that are in it and with it. THE BOTTOM OF EVERYTHING IS MATTER, WHICH IS RELATIVE DARKNESS.