Based on the events in Chapter 13, what lesson does the story of the Patil teach about the importance of faith and surrender?

Chapter 13 offers a profound lesson on faith and surrender through the Patil's experience. After his miraculous healing, the Patil understood that the painful dreams he endured were a form of grace. Realizing it was impossible to repay this favor, he concluded that total surrender was the only appropriate response, symbolized by placing his head at Baba's feet. The text explicitly states that what Sainath requires from a devotee is 'Two hands, one head, stability, faith, and total surrender' along with gratitude. The Patil's subsequent devotion and the creation of the 'Satya-Sai vow' exemplify this complete and unwavering faith born from his experience of Sai's grace.