4. In contrast to these two previous divisions of our subject the _third_ part presupposes the notional concept of the Ideal, and the universal art-types. It in other words consists in their realization through specific sensuous media. We have consequently no longer to deal with the inner or ideal evolution of the beauty of art in conformity with its widest and most fundamental determinations. What we have now before us to consider is how these ideal determinants pass into actual existence, how they are distinguishable in their external aspect, and how they give an independent and a realized shape to every element implied in the evolution of this Idea of beauty as _a work of art_, and not merely as a _universal type._ Now it is the peculiar differences immanent in the Idea of beauty which are carried over by it into external existence. For this reason in this third fundamental division these general art-types must themselves supply the basic principle for the articulation and definition of the _particular arts._ Or, to put the same thing another way, the several species of art possess in themselves the same essential differences, which we have already become acquainted with as the universal art-types. _External_ objectivity, however, to which these types are subjected in a sensuous and consequently _specific_ material, necessitates the differentiation of these types into diverse and independent modes of realization, in other words, those of particular arts. Each general type discovers its determinate character in one determinate external material or medium, in which its adequate presentation is secured under the manner it prescribes. But, from another point of view, these types of art, inasmuch as their definition is none the less consistent with the fact of the _universality_ of their typical import, break through the boundaries of their _specific_ realization in some definite art-species, and achieve an existence in other arts no less, although their position in such is of subordinate importance. For this reason, albeit the particular arts belong specifically to one of these general art-types respectively, the _adequate_ external embodiment whereof they severally constitute, yet this does not prevent them, each after its own mode of external configuration, from representing the totality of these art-types[152]. To summarize, then, in this third principal division we are dealing with the beauty of art, as it unveils itself in a world of realized beauty by means of the arts and their creations. The content of this world is the beautiful, and the true beautiful, as we have seen, is spiritual being in concrete form, the Ideal; or apprehended with still more intimacy it is the absolute mind and truth itself. This region of divine truth artistically presented to sensuous vision and emotion forms the centre of the entire world of art. It is the independent, free and divine Image[153], which has completely