How does the beginning of Chapter 25 describe the nature of Sai's grace and the purpose of the Shri Sai Satcharitra?

The start of Chapter 25 portrays Sai Baba as the 'supreme embodiment of mercy' who requires only 'one-pointed devotion' from his followers. It claims that for a faithful devotee, Sai wards off all misfortunes and grants their desired objects. The chapter then presents the Shri Sai Satcharitra itself as a direct product of this grace. The author explains that Sai inspired him to write the book to awaken devotees. The text is metaphorically described as the 'grace and "Prasad" of the Saint's feet' and a 'Moonstone (Somakant) from which the lunar nectar of Sai's tales flows.' Its purpose is to allow devotees to serve themselves these stories to 'ward off the heat of worldly existence' and burn away the sins of the age.