What were Damu Anna's specific acts of devotion and personal challenges mentioned in Chapter 25?

Chapter 25 details Damu Anna's devotional practices and personal life. A primary act of his devotion was related to the annual Ram Navami festival in Shirdi. For many years, he upheld a vow to provide one of the two large new flags taken in a procession through the village, an act performed with 'uninterrupted love and devotion.' The procession would start from Kondaji the carpenter's house and conclude with the flags being tied to the Masjid. On a personal level, the chapter notes that Damu Anna had two wives but was childless. However, it is explicitly stated that through Sai Baba's blessings, his suffering was removed, and he was eventually blessed with sons, showcasing Sai's grace in his life.