How does the author describe the nature and purpose of the Shri Sai Satcharitra before beginning Damu Anna's story?

In Chapter 25, just before recounting the story of Damu Anna, the author describes the Shri Sai Satcharitra with great humility and poetic language. He claims his intellect was endowed with courage and knowledge by Sai Baba himself, making the book a form of "grace and 'Prasad' of the Saint's feet." The text is likened to a "Shed of Nectar-like Sai Stories" where devotees can find shelter from worldly existence. Furthermore, the author compares the life story to a "Moonstone (Somakant) from which the lunar nectar of Sai's tales flows," meant to satisfy devotees like thirsty Chakora birds. Its ultimate purpose is presented as the salvation of devotees and the burning away of the sins of the Kali age.