Why are saints said to incarnate on Earth, and what is required for a person to develop an interest in their stories, as mentioned in Chapter 23?

As described in Chapter 23, the incarnations of saints occur on Earth out of benevolence, specifically for the salvation of 'dull-witted souls.' This is presented as a form of grace from the Almighty. The text further explains that a person's ability to even develop an interest in hearing these stories is not a casual matter. It states that only if one has sufficient merit (Punya) in store will a desire arise in their heart to hear the stories of saints. The ultimate purpose of hearing these tales is to attain happiness and contentment.