What underlying message about faith and divine mercy is conveyed through the introduction to Damu Anna's story?

The introduction to Damu Anna's story in Chapter 25 serves as a powerful lesson on the nature of faith and divine mercy. The text establishes that Sai is the "supreme embodiment of mercy" who desires only "one-pointed devotion." It makes a clear promise that a devotee who is faithful and filled with devotion will have their desires fulfilled and misfortunes warded off. Damu Anna's story is presented as a specific report to demonstrate this principle, showing Sai's love for His devotees. The author describes the story as a way for the reader's mind to experience how the Guru-Mother is an "Ocean of Mercy," assuring that giving attention to this tale will make difficulties vanish and fill the listener's heart with joy.