Even apart from the ‘Divine Comedy,’ Dante would have marked by these youthful poems the boundary between mediævalism and modern times. The human spirit had taken a mighty step towards the consciousness of its own secret life. The revelations in this matter which are contained in the ‘Divine Comedy’ itself are simply immeasurable; and it would be necessary to go through the whole poem, one canto after another, in order to do justice to its value from this point of view. Happily we have no need to do this, as it has long been a daily food of all the countries of the West. Its plan, and the ideas on which it is based, belong to the Middle Ages, and appeal to our interest only historically; but it is nevertheless the beginning of all modern poetry, through the power and richness shown in the description of human nature in every shape and attitude.[714] From this time forwards poetry may have experienced unequal fortunes, and may show, for half a century together, a so-called relapse. But its nobler and more vital principle was saved for ever; and whenever in the fourteenth, fifteenth, and in the beginning of the sixteenth centuries, an original mind devotes himself to it, he represents a more advanced stage than any poet out of Italy, given--what is certainly not always easy to settle satisfactorily--an equality of natural gifts to start with. Here, as in other things, in Italy, culture--to which poetry belongs--precedes the plastic arts and, in fact, gives them their chief impulse. More than a century elapsed before the spiritual element in painting and sculpture attained a power of expression in any way analogous to that of the ‘Divine Comedy.’ How far the same rule holds good for the artistic development of other nations,[715] and of what importance the whole question may be, does not concern us here. For Italian civilisation it is of decisive weight.