How does the story of Damu Anna illustrate Sai Baba's grace and love for His devotees?

The story of Damu Anna is presented as a prime example of Sai Baba's love and grace. Chapter 25 introduces his story to show that once a devotee establishes one-pointed faith, Sai wards off their misfortunes, removes suffering, and grants their desired objects. A specific illustration of this is that Damu Anna, despite having two wives, was childless. Through Sai Baba's blessings, he was eventually blessed with sons. The author emphasizes that this story, though brief, demonstrates how the Guru-Mother is an "Ocean of Mercy" and shows Sai's readiness to protect His devotees.