How does Chapter 21 describe the underlying unity and operational structure of Saints, even when they appear in different times and places?

Chapter 21 explains that although Saints may take incarnations in different places and at different times to fulfill specific purposes, they are all essentially inseparable and one in spirit. The author uses an analogy to clarify this concept, comparing the spiritual world to a sovereign kingdom. Just as a king establishes outposts with appointed officers to ensure order and prosperity, the "Emperor of Self-bliss" (God) has Saints who appear in various locations, invisibly pulling the strings to guide His kingdom. The text explicitly states that while the country, time, and external objects may differ, "the signs of one are known completely by another Saint; Inwardly, they are all one." This reveals a secret, divine arrangement where all Saints are interconnected and work in unison, forming a single, cohesive spiritual authority.