Who is Damu Anna, as introduced in Chapter 25, and why is his story significant?

As detailed in Chapter 25, Damu Anna was a well-to-do person from Ahmednagar, specifically a wealthy Kasar (bronze-smith), who was a devout follower of Sai Baba. His story is introduced to serve as a prime example of Sai's profound love for His devotees and His power to protect them. The chapter promises that listening to this story will demonstrate how the "Guru-Mother is an 'Ocean of Mercy'" and will fill the listener's heart with joy. The narrative's significance lies in its purpose: to show that when one-pointed faith is established in Sai, He wards off all misfortunes, removes suffering, and grants the devotee's desires.