Based on the teachings in Chapter 19, what is the role and importance of patience (Saburi), and how is it related to faith (Nishtha)?

In Chapter 19, Sai Baba extols the virtues of patience, describing it as the "manliness of men" and a form of courage that can carry a person through heavy burdens. He explains that patience is a "mine of virtues" that wards off sin, distress, poverty, and fear, ultimately bringing success. The text beautifully illustrates the intimate connection between faith and patience by stating, "Faith and Patience are like two sisters, dear as life to each other." This suggests that the two qualities are inseparable and mutually reinforcing. Baba emphasizes that even a powerful Guru expects his disciple to possess strong faith and the courageous strength that is patience, indicating these are foundational for spiritual progress.