What was Dev's emotional reaction upon finally understanding that Baba had indeed attended his ceremony?

Upon receiving and reading the detailed letter from Jog explaining how Baba had attended in the guise of the Sanyasi, Dev experienced a profound emotional shift. Chapter 40 states that his 'eyes overflowed with a surge of love.' He felt immense regret and shame for his ignorance and for having wrongly blamed Sai Baba. He exclaimed, 'Shame, shame! I blamed Sai in vain!' and felt 'very dejected in his mind,' recognizing Baba's greatness while lamenting his own pride and inability to see through the illusion.