What is the text's critique of how most people spend their lives, as outlined in Chapter 8?

Chapter 8 presents a strong critique of a life lived without higher purpose. It states that days and years are consumed, with half of life spent in sleep and the remainder in restlessness. The text breaks down the stages of a conventional life: childhood is spent in play, youth is dominated by passion, and old age is burdened by infirmity and disease. It pointedly asks if the purpose of life is merely to be born, grow, breathe, and live a long time. The chapter asserts that if one's existence is centered only on nourishing the body and pursuing sensual pleasure—equating it to the four activities of eating, sleeping, fear, and mating—then the precious human birth is rendered useless and no different from the life of an animal.