How does Chapter 21 describe the spiritual unity among different Saints?

Chapter 21 of the Sai Satcharitra puts forth a profound concept about the interconnectedness of Saints. It states that although Saints may take incarnations in different places and at different times for specific purposes, they are "essentially inseparable from one another." The text explains that while the external circumstances like country and time may vary, the inner signs of one Saint are completely known and understood by another. This implies a unified spiritual network or a singular divine essence manifesting in various forms. As Chapter 21 concludes on this topic, "Inwardly, they are all one," suggesting their work is part of a grand, secret arrangement.