From the author's viewpoint in Chapter 3, what does being tasked with writing the Satcharitra reveal about the nature of a Guru's grace?

The author's perspective in Chapter 3 illustrates the profound and mysterious nature of the Guru's grace. He sees the command to write Sai Baba's life story not as a burden, but as a supreme directive from a 'generous giver.' Feeling himself to be the 'most insignificant of all,' he marvels at how this 'ocean of mercy' could favor him, admitting he knows nothing on his own. This experience becomes a testament to the Guru's power. He compares this grace to a miracle where 'a sturdy tree may bloom and spread thick foliage effortlessly' even in a place without a trace of moisture, signifying that the Guru's favor is bestowed not based on merit, but out of pure, unconditional compassion.