What is the primary purpose of Chapter 25 of the Shri Sai Satcharitra, and how does the author describe their role in writing the book?

Chapter 25 serves as an invocation and outlines the purpose behind the narrative. The author explains that their motivation to write the Shri Sai Satcharitra came directly from Sai Baba himself. Despite feeling they lacked the authority or knowledge, the author states, "He Himself certainly made me write it." This chapter reveals that Sai Baba gave the command to "Keep the records," endowing the author's meager intellect with courage and special knowledge. The book is presented not as a mere collection of stories, but as the grace and "Prasad" of the Saint's feet, created to awaken devotees and provide a "Shed of Nectar-like Sai Stories" to ward off the heat of worldly existence, as detailed throughout Chapter 25.