Where it aims at the highest it will indeed ennoble the passions by Character, or moderate them by Grace, or manifest in them the power of the Soul: but on the other hand it is precisely those higher passions, depending on the relationship of the Soul with a Supreme Being, that are entirely suited to the nature of Painting. Indeed, while Sculpture maintains an exact balance between the force whereby a thing exists outwardly and acts in Nature and that by virtue of which it lives inwardly and as Soul, and excludes mere suffering even from Matter, Painting may soften in favor of the Soul the characteristicness of the force and activity in Matter, and transform it into resignation and endurance, making it apparent that Man becomes more generally susceptible to the inspirations of the Soul, and to higher influences in general.
This diametrical difference explains of itself not only the necessary predominance of Sculpture in the ancient, and of Painting in the modern world (since in the former the tone of mind was thoroughly plastic, whereas the latter makes even the Soul the passive instrument of higher revelations); but this also is evident—that it is not enough to strive after the Plastic in form and manner of representation, but that it is requisite, before all, to think and to feel plastically, that is, antiquely.
And as the deviation of Sculpture into the picturesque is destructive to Art, so the narrowing down of Painting to the conditions and forms belonging to Sculpture is an arbitrarily imposed limitation. For while Sculpture, like gravitation, acts toward one point, it is permitted to Painting, as to light, to fill all space with its creative energy.
This unlimited universality of Painting is demonstrated by History itself, and by the examples of the greatest masters, who, without injury to the essential character of their art, have developed to perfection each particular stage by itself, so that we can find also in the history of Art the same sequence that may be pointed out in its nature—not indeed in exact order of time, but yet substantially. For thus is represented in Michelangelo the oldest and mightiest epoch of liberated Art, that in which it displays its yet uncontrolled strength in gigantic progeny; as in the fables of the symbolic Fore-world, the Earth, after the embrace of Uranus, brought forth at first Titans and heaven-storming giants before the mild reign of the serene gods began.
Thus the painting of the Last Judgment, with which, as the sum of his art, that giant spirit filled the Sistine Chapel, seems to remind us more of the first ages of the Earth and its products, than of its last. Attracted toward the most hidden abysses of organic, particularly of the human form, he shuns not the Terrible; nay, he seeks it purposely, and startles it from its repose in the dark workshops of Nature. Want of delicacy, grace, pleasingness, he balances by the extremest energy; and if he excites horror by his representations, it is the terror that, according to fable, the ancient god Pan spreads around him when he suddenly appears in the assemblies of men.
It is the method of Nature to produce the extraordinary by isolation and the exclusion of opposed qualities. Thus, it was necessary that, in Michelangelo, earnestness and the deep significant energy of Nature should prevail, rather than a sense of the grace and sensibility that belong to the Soul, in order to display the extreme of pure plastic force in the painting of modern times.
After the earlier violence and the vehement impulse of birth is assuaged, the spirit of Nature is transfigured into Soul, and Grace is born. This point Art reached, after Leonardo da Vinci, in Correggio, in whose works the sensuous Soul is the active principle of Beauty.
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As the modern fable of Psyche closes the circle of the old mythology; so Painting, by giving a preponderance to the Soul, attained a new, though not a higher step of Art.
This Guido Reni strove after, and became the proper painter of the Soul. Such seems to us to be the necessary interpretation of his whole endeavor, often uncertain, and, in many of his works, losing itself in the vague.