Based on Chapter 49, how was Sai Baba directly involved in the process of writing the Sai Satcharitra?

According to Chapter 49, Sai Baba was not merely the subject of the book but its active co-creator and guiding force. The author, Hemadpant, describes a very direct and personal involvement from Sai. He states that if he ever forgot the narrative or felt lazy, Sai would give him 'the remembrance at the right time.' At other times, if the author intended to rest, a story would manifest 'so unexpectedly' that he felt compelled to take up his pen and write. Hemadpant concludes that Sai Baba himself prompted him to start the Satcharita and that, ultimately, Sai is the true 'composer and the writer.' He describes it as the merciful Sainath entering his mind to get 'His own book written,' thus fulfilling the author's desires in the process.