What was the author Annasaheb's initial perspective on having a Guru, and what caused it to change?

The preface provides a fascinating insight into the author's personal journey. Based on an account from the third chapter, which is referenced in the preface (Chapter 0), Annasaheb initially had no devotion or love for the Guru. He used to argue that making a Guru was a fraudulent practice and took pride in his own self-reliance. This deeply ingrained skepticism was completely shattered the moment his eyes met Sai Baba's. This powerful encounter, described as an 'internal spiritual witness,' humbled him and fully convinced him that a Sadguru is indispensable for navigating the ocean of life. The writing of the Shri Sai Satcharita itself is considered the fruit of Baba's grace upon him.