What is the purpose of saints incarnating on Earth, and what is required for a person to benefit from them, as explained in Chapter 23?

As explained in Chapter 23, the incarnations of saints occur on earth out of pure benevolence, with the specific purpose of bringing salvation to "dull-witted souls." This act is described as a grace of the Almighty. The chapter further elaborates that one cannot benefit from these saints by mere chance. A person must have a store of merit (Punya) from previous actions for a desire to even arise in their heart to hear the stories of saints. It is this divinely inspired desire to listen and learn that ultimately leads an individual to attain the happiness and contentment that the saints' presence is meant to bestow.