Who is Damu Anna as described in Chapter 25, and what is the purpose of including his story?

Chapter 25 introduces Damu Anna as a wealthy Kasar, or bronze-smith, from Ahmednagar. He is characterized as a well-to-do person and, more importantly, a devotee who was dedicated to the feet of Sai Baba. The purpose of introducing his story is to provide a concrete example of Sai's love and power. As the chapter states, this narrative is meant to show how Sai Baba wards off all misfortunes for a devotee once 'one-pointed faith is established.' The author presents this story in Chapter 25 to help listeners understand how the 'Guru-Mother is an Ocean of Mercy' and to demonstrate how faith in Sai removes suffering and fulfills desires.