How does the author's initial skepticism about Gurus emphasize the power of Baba's grace in the creation of Shri Sai Satcharita?

The author Annasaheb's initial skepticism serves to powerfully emphasize the transformative nature of Baba's grace. Chapter 0 recounts that Annasaheb was not just neutral but actively against the idea of having a Guru, considering it a "fraud" and taking pride in his own self-reliance. His profound change of heart after a single gaze from Baba, which "completely shattered" his pride, illustrates that the grace he received was potent enough to overcome deep-seated intellectual resistance. The preface concludes that the writing of Shri Sai Satcharita is the "fruit of that grace," suggesting that the book itself is a testament to a power that transcends personal scholarship and disbelief, making its creation an undeniable miracle of the Guru's influence.