How was the author of the Sai Satcharita inspired to write the book, according to Chapter 49?

According to Chapter 49 of the Sai Satcharita, the author explains that he was personally prompted by Sai Baba to begin writing the book for his own self-interest and for the benefit of other devotees. He views himself as merely an instrument, stating that the merciful Sainath entered his mind to get the book written and fulfill his desires. The author notes that Sai is the true composer and writer, providing inspiration at every step. For instance, he mentions that if he ever forgot the narrative, Sai would give him remembrance at the right time, and that stories would manifest unexpectedly, compelling him to pick up his pen.