than was possible in the case of architecture and sculpture. The unity attained, however, is a more inward unity, the weight of which is thrown wholly on the subjective side, and which, in as far as form and content are compelled to particularize themselves and give themselves merely ideal existence, can only come to pass at the expense of the objective universality of the content and also of its amalgamation with the immediately sensuous element.[171] The arts, then, of which form and content exalt themselves to ideality, abandon the character of symbolic architecture and the classical ideal of sculpture, and therefore borrow their type from the romantic form of art, whose mode of plasticity they are most adequately adapted to express. And they constitute a _totality_ of arts, because the romantic type is the most concrete in itself.[172] i. The articulation of this _third sphere_ of the individual arts may be determined as follows. The _first_ art in it, which comes next to sculpture, is painting. It employs as a medium for its content and for the plastic embodiment of that content visibility as such in as far as it is specialized in its own nature, _i.e._ as developed into colour. It is true that the material employed in architecture and sculpture is also visible and coloured; but it is not, as in painting, visibility as such, not the simple light which, differentiating itself in virtue of its contrast with darkness, and in combination with the latter, gives rise to colour.[173] This quality of visibility, made subjective in itself and treated as ideal, needs neither, like architecture, the abstractly mechanical attribute of mass as operative in the properties of heavy matter, nor, like sculpture, the complete sensuous attributes of space, even though concentrated into organic shapes. The visibility and the rendering visible which belong to painting have their differences in a more ideal form, in the several kinds of colour, and they liberate art from the sensuous completeness in space which attaches to material things, by restricting themselves to a plane surface. On the other hand, the content also attains the most comprehensive specification. Whatever can find room in the human heart, as feeling, idea, and purpose; whatever it is capable of shaping into act--all this diversity of material is capable of entering into the varied content of painting. The whole realm of particular existence, from the highest embodiment of mind down to the most isolated object of nature, finds a place here. For it is possible even for finite nature,[174] in its particular scenes and phenomena, to make its appearance in the realm of art, if only some allusion to an element of mind endows it with affinity to thought and feeling.