How is the story of Damu Anna framed within the Sai Satcharitra, and what is its purpose for the reader?

In Chapter 25, the story of Damu Anna is introduced as a report that demonstrates Sai's profound love for His devotees. The text explicitly invites the audience to listen with a focused mind, promising that this "novel story" will fill their hearts with joy and make their difficulties vanish. Though described as a very short story, it is said to be "very pure in its meaning." Its primary purpose is to illustrate a core teaching: that establishing one-pointed faith in Sai leads to the removal of suffering and the granting of desires, showcasing the Guru-Mother as an "Ocean of Mercy."