I'm looking for information on specific saints. The preface mentions Dnyaneshwar Maharaj. What other saints does it discuss in detail?

While the Preface (Chapter 0) does reference Lord Samarth Sadguru Dnyaneshwar Maharaj, it is primarily to quote his commentary on the Shrimad Bhagavad Gita regarding the importance of serving saints to gain knowledge. The preface does not discuss any other specific saints in detail. According to Chapter 0, the text's focus is on the overarching principle that salvation requires the grace of a Sadguru, who can appear in many forms. It emphasizes the act of service and writing a biography for one's own Sadguru as the highest form of service, rather than cataloging various saints.