How are faith and patience related, and why are they both essential for a disciple on the spiritual path?

According to the account in Chapter 19, Faith (Nishtha) and Patience (Saburi) are inextricably linked and indispensable for a disciple. They are described as being 'like two sisters, dear as life to each other.' The text clarifies that even a very powerful Guru expects these two qualities above all else from a disciple: 'strong faith at the Guru’s feet and the strength of courage which is patience.' This pairing is crucial because faith provides the foundation of trust in the Guru's guidance, while patience provides the endurance to persist through the challenges and long duration of spiritual training, making them the twin pillars of a successful discipleship.