Why is the Shri Sai Satcharita considered a 'grace-filled' book rather than just a scholarly work?

The text explains that poetic books can be of three types: natural, graceful (Prasadik), and artificial. A book written solely on the strength of scholarship and intelligence is considered artificial and will not last eternally or possess true inspiration. According to the preface in chapter 0, Shri Sai Satcharita is a 'grace-filled' (Prasad-janya) book. This quality comes from Guru's grace, without which it is difficult to create such a work. It is this divine gift that allows the book to leave a lasting impression on seekers, fostering faith and trust, and ensuring it will be studied daily by devotees.