What does the provided text say about the importance of 'Shraddha' and 'Saburi' for spiritual progress?

According to the teachings mentioned in the Shri Sai Satcharitra, the qualities of faith (Shraddha) and patience (Saburi) are absolutely essential for spiritual attainment. Chapter 2, chunk 31 explicitly states, "Without faith (Shraddha) and patience (Saburi), Not a bit of the spiritual goal is achieved." This profound lesson is presented as a firm scriptural truth that the author, Hemadpant, came to understand through personal experience. The text frames this realization as a consequence of learning to abandon the harmful trait of debating and accepting the necessity of a Guru, indicating that Shraddha and Saburi are the foundational pillars upon which any real spiritual progress is built.