Can you explain Damu Anna's role in the Ram Navami festival?

Damu Anna played a significant role in the annual Ram Navami festival held in Shirdi. According to Chapter 25, a central tradition of the festival was a procession featuring two large, new flags. One of these flags belonged to the Nimonkars, and the second one belonged to Damu Anna. This was not a one-time event; it was a regular vow that he had undertaken for many years and carried out with consistent love and devotion. The text mentions that he had made a specific vow regarding this flag, and the procession would commence from the house of Kondaji Sutara, accompanied by musical instruments, before the banners were tied to the ends of the Masjid.