Why is the story of Damu Anna included in the Shri Sai Satcharitra? What is its purpose?

The story of Damu Anna is included to serve as a clear demonstration of Sai Baba's love and protective nature towards his followers. Chapter 25 frames the narrative as a "report that shows Sai's love for His devotees." The author suggests that listening to this story with reverence will fill the listener's heart with joy and make them experience how the Guru-Mother is an "Ocean of Mercy." The ultimate purpose is to illustrate the principle that once a devotee establishes one-pointed faith, Sai wards off all their misfortunes and grants their desires. Though short, the story is described as pure in meaning and powerful enough to make difficulties vanish for those who give it their full attention.