Describe Dev's reaction after learning the truth about the Sanyasi and his reasoning for failing to recognize Baba.

Upon receiving Jog's letter detailing Baba's explanation, Dev was overcome with emotion. Chapter 40 describes his eyes overflowing with love and his mind filled with dejection and shame for having blamed Sai. He lamented his own pride of knowledge. Dev rationalized his mistake by recalling that the Sanyasi had first appeared for a completely different reason—collecting funds for cow protection—even before the Udyapan invitation was extended to Baba in Shirdi. Because of this initial context, it never occurred to him that this same person returning for a meal was Baba in disguise. He also admitted that he forgot to pay attention to Baba's specific words about coming with two others.