The second requirement, which is derivable from this first, demands of the content of art that it should not be anything abstract in itself. This does not mean that it must be concrete as the sensuous is concrete in contrast to everything spiritual and intellectual, these being taken as in themselves simple and abstract. For everything that has genuine truth in the mind as well as in nature is concrete in itself, and has, in spite of its universality, nevertheless, both subjectivity and particularity within it. If we say, e.g., of God that he is simply One, the supreme Being as such, we have only enunciated a lifeless abstraction of the irrational understanding. Such a God, as he himself is not apprehended in his concrete truth, can afford no material for art, least of all for plastic art. Hence the Jews and the Turks have not been able to represent their God, who does not even amount to such an abstraction of the understanding, in the positive way in which Christians have done so. For God in Christianity is conceived in His truth, and therefore, as in Himself thoroughly concrete, as a person, as a subject,[133] and more closely determined, as mind or spirit. What He is as spirit unfolds itself to the religious apprehension as the Trinity of Persons, which at the same time in relation with itself is One. Here is essentiality, universality, and particularity, together with their reconciled unity; and it is only such unity that constitutes the concrete. Now, as a content in order to possess truth at all must be of this concrete nature, art demands the same concreteness, because a mere abstract universal has not in itself the vocation to advance to particularity and phenomenal manifestation and to unity with itself therein.
If a true and therefore concrete content is to have corresponding to it a sensuous form and modelling, this sensuous form must, in the third place, be no less emphatically something individual, wholly concrete in itself, and one. The character of concreteness as belonging to both elements of art, to the content as to the representation, is precisely the point in which both may coincide and correspond to one another; as, for instance, the natural shape of the human body is such a sensuous concrete as is capable of representing spirit, which is concrete in itself, and of displaying itself in conformity therewith. Therefore we ought to abandon the idea that it is a mere matter of accident that an actual phenomenon of the external world is chosen to furnish a shape thus conformable to truth. Art does not appropriate this form either because it simply finds it existing or because there is no other. The concrete content itself involves the element of external and actual, we may say indeed of sensible manifestation. But in compensation this sensuous concrete, in which a content essentially belonging to mind expresses itself, is in its own nature addressed to the inward being; its external element of shape, whereby the content is made perceptible and imaginable, has the aim of existing purely for the heart and mind. This is the only reason for which content and artistic shape are fashioned in conformity with each other. The mere sensuous concrete, external nature as such, has not this purpose for its exclusive ground of origin. The birds' variegated plumage shines unseen, and their song dies away unheard, the Cereus[134] which blossoms only for a night withers without having been admired in the wilds of southern forests, and these forests, jungles of the most beautiful and luxuriant vegetation, with the most odorous and aromatic perfumes, perish and decay no less unenjoyed. The work of art has not such a naïve self-centred being, but is essentially a question, an address to the responsive heart, an appeal to affections and to minds.
Although the artistic bestowal of sensuous form is in this respect not accidental, yet on the other hand it is not the highest mode of apprehending the spiritually concrete. Thought is a higher mode than representation by means of the sensuous concrete. Although in a relative sense abstract, yet it must not be one-sided but concrete thinking, in order to be true and rational. Whether a given content has sensuous artistic representation for its adequate form, or in virtue of its nature essentially demands a higher and more spiritual embodiment, is a distinction that displays itself at once, if, for instance, we compare the Greek gods with God as conceived according to Christian ideas. The Greek god is not abstract but individual, and is closely akin to the natural human shape; the Christian God is equally a concrete personality, but in the mode of pure spiritual existence, and is to be known as mind[135] and in mind. His medium of existence is therefore essentially inward knowledge and not external natural form, by means of which He can only be represented imperfectly, and not in the whole depth of His idea.
But inasmuch as the task of art is to represent the idea to direct perception in sensuous shape, and not in the form of thought or of pure spirituality as such, and seeing that this work of representation has its value and dignity in the correspondence and the unity of the two sides, i.e. of the Idea and its plastic embodiment, it follows that the level and excellency of art in attaining a realization adequate to its idea,[136] must depend upon the grade of inwardness and unity with which Idea and Shape display themselves as fused into one.
Thus the higher truth is spiritual being that has attained a shape adequate to the conception of spirit. This is what furnishes the principle of division for the science of art. For before the mind can attain the true notion of its absolute essence, it has to traverse a course of stages whose ground is in this idea itself; and to this evolution of the content with which it supplies itself, there corresponds an evolution, immediately connected therewith, of the plastic forms of art, under the shape of which the mind as artist presents to itself the consciousness of itself.
This evolution within the art-spirit has again in its own nature two sides. In the first place the development itself is a spiritual[137] and universal one, in so far as the graduated series of definite conceptions of the world as the definite but comprehensive consciousness of nature, man and God, gives itself artistic shape; and, in the second place, this universal development of art is obliged to provide itself with external existence and sensuous form, and the definite modes of the sensuous art-existence are themselves a totality of necessary distinctions in the realm of art—which are the several arts. It is true, indeed, that the necessary kinds of artistic representation are on the one hand qua spiritual of a very general nature, and not restricted to any one material;[138] while sensuous existence contains manifold varieties of matter. But as this latter, like the mind, has the Idea potentially for its inner soul, it follows from this that particular sensuous materials have a close affinity and secret accord with the spiritual distinctions and types of art presentation.
In its completeness, however, our science divides itself into three principal portions.
First, we obtain a general part. It has for its content and object the universal Idea of artistic beauty—this beauty being conceived as the Ideal—together with the nearer relation of the latter both to nature and to subjective artistic production.
Secondly, there develops itself out of the idea of artistic beauty a particular part, in as far as the essential differences which this idea contains in itself evolve themselves into a scale particular plastic[139] forms.