What happened to the Patil in Chapter 13, and how did this experience transform his faith in Sai Baba?

In Chapter 13, the Patil experienced two strange and agonizing dreams. In the second, a gentleman pressed a grinding stone into his chest, causing him immense pain. However, upon waking, the Patil discovered that his disease had completely vanished, and he felt an unprecedented freshness. The text describes how this miraculous healing, which he understood as a beneficial result of the dream 'punishment', filled him with an overwhelming sense of joy and gratitude. He felt as if he had been reborn. This experience transformed his faith, leading him to place his head at Baba's feet and acknowledge the "inconceivable and unfathomable" nature of Sai's grace, solidifying his devotion and leading him to stay in Shirdi for a month singing praises.