According to Chapter 21, what is the nature of saints and their connection to one another?

Chapter 21 of the Sai Satcharitra explains the profound and interconnected nature of saints. The text states that while saints may take incarnations in different places and at different times for specific purposes, they are 'essentially inseparable from one another.' The author emphasizes that despite differences in country, time, and external circumstances, the inner signs of one saint are completely known to another. This chapter posits that inwardly, all saints are one. This concept is introduced after the author shares his personal story of failing to visit Pir Maulana, suggesting that the grace leading to a saint is a universal principle and the saints themselves are part of a single, divine fabric.