How does Chapter 8 of Sai Satcharitra differentiate between a meaningful human life and mere animalistic existence?

Chapter 8 of the Sai Satcharitra presents a profound philosophical argument about the purpose of human life. It posits that if a person's life is spent only on the four activities of eating, sleeping, fear, and mating, then there is no essential difference between that person and an animal like a dog or a pig. The text explicitly states that simply nourishing the body and seeking pleasure renders a human birth useless. According to the philosophy detailed in this chapter, the true and noble duty of a human being is the attainment of the Supreme Self (Paramatman), which elevates existence beyond mere survival.