What does Chapter 25 teach about the concept of 'one-pointed devotion' and its benefits?

Chapter 25 places great emphasis on 'one-pointed devotion,' stating it is what Sai Baba desires most from his followers. The chapter asserts that a devotee who is faithful and filled with this singular focus will lack nothing in achieving their desires. To underscore this point, it references Lord Krishna's teaching to Uddhava: 'The Sadguru is indeed My own form,' thereby equating loving worship of a Sadguru like Sai with one-pointed devotion. The text promises that once a devotee establishes such unwavering faith, Sai wards off all their misfortunes, removes their suffering, and grants their desired objects, a principle the chapter prepares to illustrate with an upcoming story.