According to Chapter 21, what is the nature of Saints and their relationship with one another?

Chapter 21 explains the profound and interconnected nature of Saints. It teaches that while Saints may take incarnations in different places and at different times for specific purposes, they are "essentially inseparable from one another." The source clarifies that although their external circumstances like country and time may differ, they are all one inwardly. A key insight from this chapter is that the signs of one Saint are completely known by another, highlighting a secret, unified arrangement among them. This union and their company, however, are described as difficult to attain without the presence of God’s grace.