How does Chapter 8 use comparisons to animals to make a point about human existence?

In Chapter 8, the author makes a powerful point by comparing human existence to that of animals. It posits that if humans only focus on nourishing the body, sexual pleasure, and survival, there is no difference between them and animals like dogs and pigs. The text explicitly states that dogs also fill their bellies and reproduce, questioning the greatness of the human body if it is used for the same ends. This comparison, as found in Chapter 8, serves as a stark reminder that the purpose of human life should be higher than mere animal instincts, urging readers to pursue the attainment of the Supreme Self.