How does the author of the Sai Satcharitra frame the importance of the book before telling Damu Anna's story?

In Chapter 25, before introducing Damu Anna, the author, Hemadpant, describes the Shri Sai Satcharitra as a divine gift rather than his own creation. He states that his intellect was endowed with courage and knowledge by Sai Baba, who will accept the book for the salvation of devotees. The author refers to this life story as the "grace and 'Prasad' of the Saint's feet." He uses beautiful metaphors, calling the book a "Shed of Nectar-like Sai Stories" to relieve the heat of worldly existence and a "Moonstone" from which the nectar of Sai's tales flows, satisfying devotees like thirsty Chakora birds.