How does the author introduce the story of Damu Anna, and what purpose does it serve in the narrative of the Sai Satcharitra?

The author introduces the story of Damu Anna as a powerful illustration of a key principle: that with one-pointed faith, Sai Baba protects his devotees from all misfortunes and grants their desires. Chapter 25 describes this tale as a 'novel story' and an 'Ocean of Mercy' that is short but pure in its meaning. Its purpose is to show Sai's love and readiness to protect his followers, filling the listener's heart with joy and demonstrating how the Guru-Mother removes suffering. The narrative serves to strengthen the reader's faith by providing a concrete example of Sai's divine intervention.