Based on the introductory sections of Chapter 25, what is the author's stated purpose for writing, and what does he promise the reader?

In the beginning of Chapter 25, the author clarifies his purpose in writing the Shri Sai Satcharitra. He states that a desire arose in his heart to document the divine plays of Sai Baba, which are wonderful to listen to. He admits his own perceived lack of qualification but asserts that Sai Baba himself inspired him and commanded him to write the book specifically to awaken His devotees. The author promises that listening to these holy stories with a focused mind will burn away the sins of the Kali age, and that by partaking in these nectar-like stories, one can ward off the heat of worldly existence.