What is the concluding message of Chapter 53 regarding authorship and divine intervention?

The concluding message of Chapter 53 is one of profound humility and surrender to divine will in the face of human limitations. The chapter explains that the original author, Hemadpant, couldn't finish the book, which is framed not as a failure but as an instance where "Baba’s will is more powerful." The subsequent author, tasked with completing the work, repeatedly expresses their own inadequacy, stating, "I am a fool with a dull intellect." The ultimate conclusion presented in Chapter 53 is that the true author is Sai himself. The human writer is merely an instrument, as stated: "Sai, the breaker of obstacles (Vakratunda), will be the one to write this summary. His glory is immense; my mouth is merely an instrument."