What's the deeper meaning behind why saints appear on Earth, and how should we perceive their true nature based on Chapter 23?

According to Chapter 23, the incarnations of saints on earth are an act of pure benevolence, occurring for the salvation of 'dull-witted souls' as a form of grace from the Almighty. The text suggests that even having the desire to hear their stories is a sign of accumulated spiritual merit (Punya). Importantly, this chapter advises against judging a saint by external or worldly standards. It explicitly states that one cannot understand a saint's true state by observing their caste, behavior, or what they eat, because their essential nature is always beyond such superficial things.