The primary and original necessity of art is this, that a conception, a thought emanate from mind, be produced and emphasized by man as the result of his activity, just as in speech there are simple ideas which man communicates thereby and makes intelligible to others. In human speech, however, the means of communication is accepted merely as a sign, and for this reason is an entirely arbitrary mode of externalization. The function of art, on the contrary, is not only to make use of the mere symbolic sign, but, in contrast to this, to supply a sensuous presence correspondent to significances. On the one hand, therefore, the sensuous product, which art presents to us, must afford lodging for an ideal content; on the other it has to represent this content in a manner which enables us to see that it is itself as its content not merely a realization of immediate reality, but an actual product of human conception and its spiritual activity. If I see, for example, an actually living lion I deduce from the unique presentment of the same the concept of lion precisely as I should in the case of a picture of it. In the picture, however, we find something more than this. It demonstrates to us that the form has been conceived in the mind, and has found the origination of its existence in the human spirit and its productive activity, so that now we not only receive the idea of an object, but the idea of a human conception of that object. There is, however, no original artistic necessity that either a lion, merely as such[34], a tree, or any other single object be added for the success of such reproduction. We have seen, on the contrary, that art, and pre-eminently plastic art, proceeds with the presentation of such objects in order to affirm in them the dexterity of the counterfeit from the artist's own point of view. The interest in its first origination is directed to bringing before the vision of the artist himself and others the primary impressions of the objective facts, and the universal or essential thoughts thus stimulated. Such popular impressions are, however, in the first instance abstract and in themselves of indefinite character, so that man, in order that he may present them to the imagination, lays hold of that which is essentially just as abstract, the material medium as it is--which is at once massive and ponderous--a material which is no doubt capable of a definite, but not of an intrinsically concrete and veritably spiritual, content. The relation between content and sensuous reality, by virtue of which the content is to pass from the concipient world into that of imagination, can consequently only be of a symbolical type. At the same time, however, a building, which purports to declare a general significance for others, stands there for no other purpose save that of essentially expressing this loftier aspect, and is consequently an independent symbol of a thought that goes straight to its essential