What is the main principle that Chapter 21 teaches about the accessibility of Saints and the role of divine grace?

The fundamental principle taught in Chapter 21 is that having the company of Saints is not a simple matter of one's own will or effort but is entirely dependent on good fortune and the grace of God. The author states unequivocally, "Unless good fortune dawns, One does not encounter Saints and Sages." This idea is central to the chapter, which explains that the "company of Saints is not accessible to the unfortunate" and that attaining this union is only easy when God's grace is present. The author uses his own personal story of failing to visit Pir Maulana as a prime example of how ill-luck can act as a barrier. Therefore, as per the teachings in Chapter 21, access to enlightened beings is a divine gift bestowed upon the fortunate, not something that can be forced or achieved through mere physical proximity.