How does the author of the Sai Satcharitra describe the book's purpose and spiritual power?

The author explains that he felt his intellect was endowed with courage and special knowledge to write the book, believing Sai Baba Himself would accept the work for the salvation of His devotees. According to Chapter 25, the Sai Satcharitra is presented not as mere words, but as the grace and "Prasad" from the Saint's feet. It is metaphorically described as a "Shed of Nectar-like Sai Stories" to protect devotees from the struggles of worldly existence and as a "Moonstone" from which the nectar of Sai's tales flows. The text further claims that listening to these holy stories with a focused mind can burn away the sins of the Kali age.