What personal hardship did Damu Anna face, and how was it resolved according to the text?

According to the narrative in Chapter 25, Damu Anna, a wealthy and devout man, faced the personal hardship of being childless despite having two wives. This was a source of suffering for him. The text explains that this difficulty was resolved through his faith and Sai Baba's grace. It is explicitly mentioned that by receiving Sai's blessings, Damu Anna was blessed with sons. This event is presented as an example of how Sai Baba grants the desired objects of His devotees and removes their suffering when they have one-pointed faith.