Herder talks about the problem of the reality in arts in his Plastik, which is, in a proper term, the objective reality of the sense of touch, implying both the vital reality conceived in the arts and the real function of arts referred to the social effect as is mentioned in his essays on poetry. It is clear that the vital reality finds its theoretical development in the existentialists' aesthetics, and the functional reality is succeeded by the Marxists' aesthetics. But the real could be perceived, from Herder's view, as being more synonymous with nature than the historical existence of human being. As for the real effect upon the social life, its teoretical demonstrations have not been sufficiently made. We can find indeed, at any rate, that Herder, in his theory of arts, suggests what is signified by the reality in arts.