According to Chapter 21, what is the relationship between different Saints, and how do they operate across time and place?

Chapter 21 of the Sai Satcharitra teaches that all Saints are fundamentally and essentially one, despite appearing in different times, places, and forms. The text explains that they take incarnations for specific purposes in various locations as they see fit. Though their external circumstances like country and era may differ, inwardly they are inseparable and part of a single, unified consciousness. A key point mentioned in Chapter 21 is that Saints have a secret arrangement and can completely recognize the signs of one another. This highlights a deep, underlying unity and interconnectedness, suggesting they are all expressions of the same divine principle working in unison for the spiritual upliftment of the world.