The text mentions Sai desires 'one-pointed devotion'. How is Damu Anna's story presented as an example of this?

Chapter 25 introduces the story of Damu Anna immediately after establishing the principle that Sai Baba desires "one-pointed devotion" and that a faithful devotee lacks nothing. The narrative is framed as a direct illustration of this teaching. The text explicitly states that the upcoming story is a "report that shows Sai's love for His devotees" and will reveal how the "Guru-Mother is an 'Ocean of Mercy.'" By positioning Damu Anna, a devotee who was devoted to Sai's feet, as the subject, the chapter sets up his experiences as a case study. The author promises that by listening to the story, Sai's power and readiness to protect His devotees will be seen directly, thereby reinforcing the idea that one-pointed faith, like Damu Anna's, is met with Sai's grace and protection.