Thus Luther entered the last period of his life. His disappearance in the Thuringian forest had made an immense sensation. His opponents, who were accused of his murder, trembled before the indignation which was roused against them, both in city and country. The interruption, however, of his public activity was pregnant with evil to him; as long as he was at Wittenberg, the centre of the struggle, his word and his pen could dominate the great spiritual movement both in the north and south, but in his absence it worked arbitrarily in different directions, and in many heads. One of Luther's oldest associates began the confusion, and Wittenberg itself was the scene of action of a wild commotion. Luther could no longer bear to remain at the Wartburg; he had already been once secretly to Wittenberg; he now returned there publicly, against the will of the Elector. Then began an heroic struggle against old friends, and against conclusions drawn from his own doctrines. His activity was superhuman; he thundered incessantly from the pulpit, and his pen flew over the pages, in his cell. But he was not able to bring back all the erring minds, neither could he prevent the excitement of the people from gathering into a political storm. What was more, he could not hinder the spiritual freedom which he had won for the Germans, from producing, even in pious and learned men, an independent judgment upon faith and life, which was often opposed to his own convictions. Then came the dark years of the Iconoclastic and Anabaptist struggle, the Peasant war; and the sad dispute about the Sacrament. How often at this time did the figure of Luther arise gloomy and powerful above the disputants! how often did the perversity of men and his own secret doubts, fill him with anxious cares about the future of Germany!