How did Dev react when he finally learned that the Sanyasi who attended his feast was actually Sai Baba?

Upon learning the truth from a letter sent by Jog, Dev experienced a profound emotional shift. Chapter 40 details that when Dev read the letter explaining Baba's disguised visit, his eyes "overflowed with a surge of love." He was immediately struck with remorse and shame for his lack of perception and for unjustly blaming the Master, exclaiming, "Shame, shame! I blamed Sai in vain!" He felt very dejected, recognizing Baba's greatness while lamenting the pride of his own knowledge that had blinded him to the miracle that had occurred right before his eyes.