Based on the teachings in Chapter 19, how are the concepts of Faith (Nishtha) and Patience (Saburi) interconnected?

According to the account in Chapter 19, Faith (Nishtha) and Patience (Saburi) are deeply interconnected and presented as essential twin virtues for a spiritual seeker. Sai Baba describes them as being 'like two sisters, dear as life to each other.' This metaphor suggests they are inseparable and mutually supportive. While Faith provides the strong foundation and trust in the Guru, Patience provides the courage and resilience to endure hardships on the path. The text implies that one cannot fully exist without the other; a disciple is expected to possess 'strong faith at the Guru’s feet and the strength of courage which is patience,' indicating they work in tandem to facilitate spiritual growth.