Who is Damu Anna, and for what purpose is his story introduced at the end of Chapter 25?

According to Chapter 25, Damu Anna is a well-to-do Kasar (bronze-smith) from Ahmednagar and is described as a devotee devoted to Sai's feet. His story is introduced to serve as a tangible example of Sai Baba's love for His followers. The chapter explicitly states that the narrative will demonstrate how Sai "wards off all the misfortunes" of a devotee with one-pointed faith, grants their desired objects, and removes their suffering. By presenting this story, which is described as short but "very pure in its meaning," the author aims to show the reader how the Guru-Mother is an "Ocean of Mercy" and to fill the listeners' hearts with joy.