This view has been radically altered by the course of the Modern Age. When the invisible world became uncertain to man and the life directed towards it shadowy, an intense thirst for reality, for a life out of the abundance and truth of things, arose, and only the visible world seemed to promise satisfaction. This world had been seen previously in a particular light which is now felt to be artificial and distorting; if this light fails and the world can unfold itself unaffected, it shows a far richer content, far firmer relations, far greater tasks. All this is more especially because the world no longer appears to be something finished, but as still in process and as capable of a thorough-going elevation; because great possibilities which human power is able to awaken still lie dormant in it. In diverse directions sense experience advances far beyond the older form; Natural Science analyses the visible world into its single components and makes it penetrable to our thought, and at the same time technical skill wins power over its forces. In the political and social sphere men find new tasks not only in regard to isolated questions, but throughout the whole of its organisation, and great hopes of an essential elevation of life are raised. The individual also appears more powerful and richer, in that the decay of traditional ties gives him complete freedom for his development. Even if, in the struggle for the control of life, these movements in many ways fall into contradiction one with another, still, in the first place they unite in advancing the world of sense in man's estimation, in fixing his love and his work there, and in also making men more and more disinclined to consider the life-systems rooted in the invisible. Sense experience presents itself ever more decidedly as something which can tolerate neither partner nor rival; the life directed towards it loses more and more the nature of being an opponent, which it hitherto had, and it undertakes to shape our whole existence characteristically in positive achievement and also to satisfy the spiritual needs of man completely. All this signifies an entire reversal of the order of life; for, since the world which formerly had seemed secondary now becomes predominant, indeed exclusive, all standards and values are changed, and the old possession appears also as a new gain. It is true that the new mode of thought misses the advantages which a long tradition gave to the old: but in place of this, it has the charm of searching and finding for itself, the joy of first discovery and successful exertion; here an infinite horizon is disclosed; before the research and effort of man lies an open way. Endeavour derives particular power and confidence from the conviction that the new is nothing else than the old and genuine, but hitherto misunderstood, nature: it is a return of life to itself, to its plain and pure truth, which permits us to expect a new world epoch.