How does Chapter 53 explain the role of divine will in the events surrounding the book's completion?

Chapter 53 strongly emphasizes the supremacy of divine will, particularly Sai Baba's will, over human plans. It addresses the unusual situation of the original author, Hemadpant, not finishing his own book. While the general rule is that he who begins a book should complete it, the chapter notes there are exceptions, stating, "Nothing happens by one's own will; Baba’s will is more powerful." The new author reinforces this theme by declaring that "Sai, the breaker of obstacles (Vakratunda), will be the one to write this summary. His glory is immense; my mouth is merely an instrument." This presents the entire completion of the Satcharitra as an act orchestrated by the Sadguru's grace rather than human effort.