The Marathi words 'shraddha' and 'saburi' are central to Sai Baba's teachings. Based on the provided texts, what specific details are given about these two principles?

The provided source material does not contain information about the principle of 'saburi' (patience). While the term 'Shraddha' is mentioned in Chapter 35, it refers specifically to the anniversary ceremony for the devotee Balaji Patil Nevasakar, not the broader concept of faith. During this ceremony, a miraculous event occurred where food, blessed with Udi by the mother-in-law, multiplied to feed an unexpectedly large number of guests. Thus, while the story demonstrates immense faith, the text itself does not offer a direct teaching on 'shraddha' as a concept, but rather uses the word to denote a specific ritual.