What insight does the preface give regarding the author Annasaheb's personal journey and the importance of a Guru for creating spiritual literature?

The preface in Chapter 0 strongly emphasizes that creating a work like Shri Sai Satcharita is difficult, regardless of one's scholarship, without the essential element of Guru's grace. It notes that a book lacking this divine gift will not resonate with seekers. Interestingly, it also reveals a fact about the author, Annasaheb, by referencing his own account from the third chapter. Based on this, Chapter 0 states that Annasaheb initially had no Guru devotion or love for a Guru, highlighting the transformative journey he undertook, which ultimately enabled him to author this grace-filled book.