According to the end of Chapter 2, what is the main purpose of listening to Sai's life story, and what are the promised benefits?

The concluding part of chapter 2 outlines the primary purpose and benefits of engaging with Sai's life story. The text encourages listeners to hear the story for the sake of obtaining Sai's grace. The promised benefits are profound: by doing so, a person can overcome the difficult fear associated with worldly existence. Moreover, it is stated that the impurities characteristic of the Kali age will be completely destroyed from the root. The chapter concludes by asserting that Sai is the ultimate goal and source of happiness, making the act of listening to his biography a path to spiritual purification and liberation.