According to Chapter 21, what is the underlying unity among different Saints, and how does this relate to their incarnations?

Chapter 21 of the Sai Satcharitra presents a profound teaching on the nature of Saints. It explains that although Saints may take incarnations in different places and at different times for specific purposes, they are all "inseparable from one another." The text emphasizes that while their external circumstances like country, time, and appearance may differ, inwardly they are all one. As the chapter beautifully puts it, the signs of one Saint are completely known by another, highlighting their secret arrangements and interconnectedness. This reveals that the divine essence animating one Saint is the same that animates all others, making them fundamentally a single, unified spiritual entity.