How does the Satcharitra illustrate Sai Baba's principle of responding to one-pointed faith, using Damu Anna's story?

Chapter 25 first establishes a core principle: 'Once one-pointed faith is established, Sai wards off all the misfortunes of that devotee.' It then presents the story of Damu Anna as a direct illustration of this principle. Damu Anna, a devoted bronze-smith from Ahmednagar, faced the misfortune of being childless despite having two wives. His faith was demonstrated through his long-standing vow related to the Ram Navami flag procession. The text shows how Sai, the 'Guru-Mother' and 'Ocean of Mercy,' responded directly to this faith by granting him the desired object—sons—thereby removing his suffering and showing Sai's readiness to protect his devotees.