How does Chapter 25 characterize Shri Sai Baba and the nature of devotion He desires?

Chapter 25 portrays Shri Sai Baba in the most exalted terms, describing Him as an "ocean of mercy," the "manifest incarnation of God," and the "Supreme Brahman." The chapter emphasizes that Sai Baba desires "one-pointed devotion" above all else, explaining that a devotee who is faithful and filled with such devotion will not lack anything in attaining their desires. Citing Krishna's words to Uddhava, the text reinforces this by stating, "The Sadguru is indeed My own form," and that worshipping the Sadguru with love is the very definition of one-pointed devotion. This sets the stage for understanding the relationship between the Guru and the devotee as central to spiritual progress.