How does Chapter 25 define 'one-pointed devotion' and what is its significance in a devotee's life?

Chapter 25 emphasizes 'one-pointed devotion' as a crucial element for a follower of Sai. It provides a specific definition by referencing a sacred dialogue: '"The Sadguru is indeed My own form," said Krishna to Uddhava. One should worship such a Sadguru with love; this is what one-pointed devotion is named.' The significance of achieving this state of devotion is profound. As stated in Chapter 25, a devotee who is 'faithful and filled with devotion lacks nothing in attaining their desires.' Furthermore, the text assures that once this one-pointed faith is firmly established, Sai Baba actively 'wards off all the misfortunes of that devotee,' grants their wishes, and removes their suffering.