Based on the introductory verses in Chapter 25, what does Damu Anna's story signify about the nature of faith in Sai Baba?

Based on the introduction in Chapter 25, Damu Anna's story signifies that establishing one-pointed faith in Sai Baba is the key to overcoming life's misfortunes and attaining one's deepest desires. The author explicitly states, "Once one-pointed faith is established, Sai wards off all the misfortunes of that devotee." Damu Anna's experience serves as the immediate proof of this principle. As a devotee who was childless despite having two wives, his unwavering devotion, demonstrated by his annual flag vow, was rewarded when Sai Baba blessed him with sons. His story is presented to show that faith in Sai, who is an "Ocean of Mercy," brings direct protection and fulfillment.