We have seen the anguish and inward wrestlings to which Luther was a prey in the convent of Erfurt. At this time a visit from the vicar-general was announced, and Staupitz accordingly arrived to make his ordinary inspection. The friend of Frederick, the founder of the University of Wittemberg, the head of the Augustins, took a kind interest in the monks under his authority. It was not long ere one of the friars of the convent attracted his attention. This was a young man of middle stature, whom study, abstinence, and vigils, had so wasted away, that his bones might have been counted.[171] His eyes, which at a later period were compared to those of the falcon, were sunken, his gait was sad, and his looks bespoke a troubled soul, the victim of numerous struggles, yet still strong and bent on resisting. His whole appearance had in it something grave, melancholy, and solemn. Staupitz, whose discernment had been improved by long experience, easily discovered what was passing in the soul of the young friar, and singled him out from those around him. He felt drawn towards him, had a presentiment of his high destiny, and experienced the interest of a parent for his subaltern. He, too, had struggled like Luther, and could therefore understand his situation. Above all, he could show him the way of peace, which he himself had found. The information he received of the circumstances which had brought the young Augustin to the convent increased his sympathy. He requested the prior to treat him with great mildness, and availed himself of the opportunities which his office gave him to gain the young friar's confidence. Going kindly up to him, he took every means to remove his timidity, which was moreover increased by the respect and reverence which the elevated rank of Staupitz naturally inspired. [171] Mosellani Epist. The heart of Luther, till then closed by harsh treatment, opened at last, and expanded to the mild rays of charity. "As in water face answereth to face, so the heart of man to man."[172] The heart of Staupitz answered to the heart of Luther. The vicar-general understood him; and the monk, in his turn, felt a confidence in Staupitz which no one had hitherto inspired. He revealed to him the cause of his sadness, depicted the fearful thoughts which agitated him, and then in the cloister of Erfurt commenced a conversation full of wisdom and instruction. [172] Proverbs, xxvii, 19. "In vain," said Luther despondingly to Staupitz; "in vain do I make promises to God; sin has always the mastery."