Based on Chapter 21, what is the relationship between different saints who appear in various times and places?

Chapter 21 explains that saints, despite appearing at different times and in different locations to fulfill specific purposes, are fundamentally inseparable and united. The text posits that "they are essentially inseparable from one another." It further clarifies that although their country, time, and physical circumstances may differ, the spiritual signs of one saint are completely understood by another because, as the chapter states, "Inwardly, they are all one." This suggests a hidden, unified network or consciousness shared among all true saints, working under a single divine authority.