What is the author's stated purpose for writing the Shri Sai Satcharitra in Chapter 25?

In Chapter 25, the author explains that the desire to write the life story of Shri Sai arose in his heart, but he credits Sai Baba Himself for the inspiration and ability to do so. Despite feeling he lacked the authority or knowledge, the author states that Sai gave him the command and endowed his "meager intellect with courage and special knowledge." The ultimate purpose described in this chapter was for the author to act as an instrument, with Sai making him "write the book with my own hands to awaken His own devotees." The book is thus presented not as the author's own work, but as the grace and "Prasad" from the Saint's feet, intended for the salvation of devotees.