What was Dev's reaction upon learning the truth about Sai Baba's attendance at his feast?

Upon receiving a detailed letter from Jog explaining how Sai Baba had indeed attended the Udyapan ceremony in the guise of a Sanyasi, Dev was overcome with emotion. As narrated in Chapter 40, Dev's 'eyes overflowed with a surge of love' as he read the account. He immediately felt intense regret and dejection for his lack of faith and perception, exclaiming, 'Shame, shame! I blamed Sai in vain!' He recognized the folly of his own pride and knowledge, feeling ashamed that he could not see through the disguise and had wrongly accused his Guru. His blame turned to reverence for Baba's greatness and sorrow for his own blindness.