This purpose he achieved by the alteration he effects in such external objects, upon which he imprints the seal of his inner life, rediscovering in them thereby the features of his own determinate nature. And man does all this, in order that he may as a free agent divest the external world of its stubborn alienation from himself--and in order that he may enjoy in the configuration of objective fact an external reality simply of himself. The very first impulse of the child implies in essentials this practical process of deliberate change in external fact. A boy throws stones into the stream, and then looks with wonder at the circles which follow in the water, regarding them as a result in which he sees something of his own doing. This human need runs through the most varied phenomena up to that particular form of self-reproduction in the external fact which is presented us in human art. And it is not merely in relation to external objects that man acts thus. He treats himself, that is, his natural form, in a similar manner: he will not permit it to remain as he finds it; he alters it deliberately. This is the rational ground of all ornament and decoration, though it may be as barbarous, tasteless, entirely disfiguring, nay, as injurious as the crushing of the feet of Chinese ladies, or the slitting of ears and lips. For it is among the really cultured alone that a change of figure, behaviour, and every mode and manner of self-expression will issue in harmony with the dictates of mental elevation[56]. This universal demand for artistic expression[57] is based on the rational impulse in man's nature to exalt both the world of his soul experience and that of Nature for himself into the conscious embrace of mind as an object in which he rediscovers himself. He satisfies the demand of this spiritual freedom by making explicit to, his _inner_ life all that exists, no less than from the further point of view giving a realized _external_ embodiment to the self made thus explicit. And by this reduplication of what is his own he places before the vision and within the cognition of himself and others what is within him. This is the free rationality of man, in which art as also all action and knowledge originates. We shall investigate at a later stage the specific need for art as compared with that for other political and ethical action, or that for religious ideas and scientific knowledge. 2. We have hitherto considered the work of art under the aspect that it is fashioned by man; we will now pass over to the second part of our definition, that it is produced for his _sense-apprehension_, and consequently is to a more or less degree under obligations to a sensuous medium.