How does Chapter 8 of the Sai Satcharitra critique a life that is focused only on mundane activities and worldly pleasures?

Chapter 8 presents a strong critique of a life devoid of spiritual purpose. It describes how years are consumed while half of life is spent in sleep and the rest in restlessness. It observes that childhood is spent in play, youth in passion, and old age is burdened by infirmity and disease. The text directly challenges the idea that nourishing the body and seeking sexual pleasure are the primary goals of existence, declaring such a human birth to be useless. As stated in the chapter, if life is wasted on just eating, sleeping, fear, and mating, one should wisely consider the lack of difference between a human and a dog, as both would be in the same state of mere survival.