Based on Chapter 25, who is Damu Anna and why is his story being told?

Chapter 25 introduces Damu Anna as a wealthy Kasar (bronze-smith) from Ahmednagar and a devoted follower of Sai Baba. His story is presented as a testament to Sai's love for His devotees. The chapter explains that his narrative will serve as an example of how Sai Baba wards off the misfortunes of any devotee who establishes one-pointed faith. By listening to this story, the text suggests that one's own difficulties can vanish and the heart will be filled with joy, understanding how the Guru-Mother is an "Ocean of Mercy."