Let us imagine ourselves transported to a very lonely place, with unbroken horizon, under a cloudless sky, trees and plants in the perfectly motionless air, no animals, no men, no running water, the deepest silence. Such surroundings are, as it were, a call to seriousness and contemplation, apart from all will and its cravings; but this is just what imparts to such a scene of desolate stillness a touch of the sublime. For, because it affords no object, either favourable or unfavourable, for the will which is constantly in need of striving and attaining, there only remains the state of pure contemplation, and whoever is incapable of this, is ignominiously abandoned to the vacancy of unoccupied will, and the misery of ennui. So far it is a test of our intellectual worth, of which, generally speaking, the degree of our power of enduring solitude, or our love of it, is a good criterion. The scene we have sketched affords us, then, an example of the sublime in a low degree, for in it, with the state of pure knowing in its peace and all-sufficiency, there is mingled, by way of contrast, the recollection of the dependence and poverty of the will which stands in need of constant action. This is the species of the sublime for which the sight of the boundless prairies of the interior of North America is celebrated. But let us suppose such a scene, stripped also of vegetation, and showing only naked rocks; then from the entire absence of that organic life which is necessary for existence, the will at once becomes uneasy, the desert assumes a terrible aspect, our mood becomes more tragic; the elevation to the sphere of pure knowing takes place with a more decided tearing of ourselves away from the interests of the will; and because we persist in continuing in the state of pure knowing, the sense of the sublime distinctly appears. The following situation may occasion this feeling in a still higher degree: Nature convulsed by a storm; the sky darkened by black threatening thunder-clouds; stupendous, naked, overhanging cliffs, completely shutting out the view; rushing, foaming torrents; absolute desert; the wail of the wind sweeping through the clefts of the rocks. Our dependence, our strife with hostile nature, our will broken in the conflict, now appears visibly before our eyes. Yet, so long as the personal pressure does not gain the upper hand, but we continue in æsthetic contemplation, the pure subject of knowing gazes unshaken and unconcerned through that strife of nature, through that picture of the broken will, and quietly comprehends the Ideas even of those objects which are threatening and terrible to the will. In this contrast lies the sense of the sublime.