Based on these introductory chunks, what does the text say about Baba's teachings on shraddha and saburi?

The provided excerpts from Chapter 0 do not contain any information about a figure named Baba or any specific teachings on 'shraddha' and 'saburi'. The text serves as a preface, discussing the nature of spiritual literature, particularly Guru biographies. It outlines how these books are used for both worldly gain (Kamya) and selfless liberation (Nishkam) and mentions the works of Marathi poets like Shri Mahipati and Shri Dasganu Maharaj. However, the specific terms 'shraddha', 'saburi', or 'Baba' are not mentioned in these passages.