According to Chapter 13, what does Sainath require from his devotees, and how did the Patil exemplify this?

According to the account in Chapter 13, Sainath's needs from his devotees are simple and profound: "Two hands, one head, stability, faith, and total surrender." The text emphasizes that beyond these, "Sainath needs nothing else; only that one gratitude should be there." The Patil perfectly exemplified these qualities after his miraculous healing. He showed his faith and total surrender by traveling for Baba's darshan and placing his head at Sai's feet. He demonstrated profound gratitude by instituting the "Satya-Sai vow," a regular practice of reading Sai's stories from Das Ganu's work, thus dedicating his life to remembering and celebrating Sai's grace.