According to Baba's experience, what is the significance of 'Saburi' or patience for a disciple on the spiritual path?

In Chapter 19, Baba elevates patience, or Saburi, as a cornerstone of spiritual life and a quality a Guru deeply values. He describes patience as the 'manliness of men,' a virtue that actively wards off sin, distress, poverty, and fear. He personifies it as a 'mine of virtues' and the 'queen of the King of Good Thoughts,' working inseparably with its sister, Faith. Baba stresses that even a highly powerful Guru expects their disciple to possess the strength of courage, which is patience. He concludes that a person's life is ultimately in vain without it, regardless of their other virtues or knowledge, showing its indispensable role in overcoming calamities and achieving success.