How does the author of the Sai Satcharitra describe his process for writing the book, especially when he feels uninspired?

In Chapter 49, the author reveals that he is merely an instrument for Sai Baba. He explains that even if laziness comes to him or he forgets the narrative, Sai provides him with "the remembrance at the right time." He describes how his own desire to rest is often overridden, as a story will manifest so unexpectedly that he feels compelled to take up his pen. The chapter emphasizes that it was Sai who prompted him to start the Satcharita for the benefit of devotees and for the author's own self-interest. Ultimately, the author concludes that the "merciful Sainath, entering into my mind, got His own book written," showing that Sai Himself is the true composer.