What was Dev's emotional reaction when he finally learned that the Sanyasi at his ceremony was in fact Sai Baba?

When Jog sent a letter detailing how Sai Baba had indeed attended the Udyapan ceremony in the guise of a Sanyasi, Dev had a powerful emotional reaction. Chapter 40 describes that upon reading the letter, his "eyes overflowed with a surge of love." He was immediately filled with remorse for doubting Baba, exclaiming, "Shame, shame! I blamed Sai in vain!" He felt very dejected and was ashamed of his own intellectual pride, wondering how he could have failed to recognize his Guru. This moment of realization transformed his disappointment into a profound sense of love and regret for his lack of faith.