What does Chapter 25 reveal about the concept of one-pointed devotion and the blessings it can bring to a follower of Sai?

Chapter 25 emphasizes that Sai Baba desires 'one-pointed devotion' from his followers above all else. To define this, the text references Krishna's words to Uddhava, stating, 'The Sadguru is indeed My own form,' and that worshipping such a Sadguru with love is the essence of one-pointed devotion. The chapter promises great rewards for such faith, asserting that a devotee who is faithful and filled with devotion 'lacks nothing in attaining their desires.' It explicitly states that once this one-pointed faith is established, Sai wards off all misfortunes, removes suffering, and grants the desired objects of that devotee, showcasing the Guru-Mother as an 'Ocean of Mercy.'