I'm looking for teachings on faith and patience (shraddha and saburi). Is that information available in the text?

The information you are looking for on 'shraddha' and 'saburi' is not available in the provided source text. The text is a preface that centers on the tradition of writing and studying Guru biographies. According to Chapter 0, poets like Shri Mahipati and Shri Dasganu Maharaj are famous for writing biographies of saints in the Marathi Ovi meter. It also discusses the practice of 'Parayan' or 'Saptah' (devotional reading) of these works, noting that some biographies within larger compilations may be too brief for a detailed individual study. The content is about the literary and devotional tradition, not specific philosophical teachings.