How does Chapter 53 reconcile Hemadpant's unfulfilled promise with the eventual completion of the Satcharitra's summary?

Chapter 53 reconciles this by framing the entire situation through the lens of divine will and surrender. It first establishes that Hemadpant's sudden death prevented him from writing the summary, which is presented as an act of Baba's more powerful will. The chapter then details how subsequent human efforts to create the summary also failed. The resolution comes when the new author, feeling completely unqualified, surrenders to a higher power. This author prays to Dattaguru and asserts that it is Sai Himself who will write the summary through them. As Chapter 53 explains, the author is just an instrument, thus attributing the final work not to human effort but to divine grace, completing the book's spiritual message.