Please provide a summary of the story of Damu Anna as recounted in the source material.

Chapter 25 introduces Damu Anna as a wealthy bronze-smith from Ahmednagar and a devout follower of Sai Baba. His story, though described as short, is presented as very pure in its meaning. The account highlights two main points: first, that he was blessed with sons by Sai's grace, as he previously had no children despite having two wives. Second, it details his devotional vow for the Ram Navami festival, where he provided one of two large flags for the annual procession in Shirdi. This procession began at Kondaji Sutara's house and ended with the flags being tied to the Masjid, symbolizing his continuous devotion.