What is the role of divine grace in the writing of the final chapter summary, according to the text?

According to Chapter 53, divine grace is not just a help but the sole force enabling the completion of the book's summary. The author, feeling completely unqualified, states, "I have no strength to compose poetry." They place their entire reliance on the Guru, praying to Lord Dattaguru and Sai-Narayana for compassion and inspiration. The author's belief is captured in the statement that the Guru's power "is so great that He can make a gnat lift a mountain." Ultimately, the author concludes that Sai Baba himself, referred to as "the breaker of obstacles (Vakratunda)," will be the one to write the summary, and the author's mouth is "merely an instrument" for this divine act, as described in Chapter 53.