What lessons about faith and surrender does the Patil's story in Chapter 13 provide?

Chapter 13 teaches that true faith in Sai Baba involves complete and total surrender, even when faced with events that are difficult to understand. The Patil's story is a key example; he experienced a bizarre and punishing dream, yet it resulted in his complete healing from disease. This experience led him to understand that Sainath's grace is 'inconceivable and unfathomable.' The chapter explicitly states what Sainath requires from a devotee: 'Two hands, one head, stability, faith, and total surrender. Sainath needs nothing else; only that one gratitude should be there.' The Patil's immediate response of placing his head at Baba's feet symbolizes this ultimate act of surrender, which is presented as the only true way to repay the favor of divine grace.