Why does the author of Sai Satcharitra in Chapter 8 make a comparison between humans and animals like dogs and pigs?

In Chapter 8, the author draws a stark comparison between humans and animals like dogs and pigs to underscore a key philosophical point about the purpose of human life. The text argues that if a person's existence is solely focused on the four activities of eating, sleeping, fear, and mating, there is no meaningful difference between that person and an animal. As stated in Chapter 8, dogs also fill their bellies and reproduce, so if these are the only ends, the greatness of the human body is nullified. This provocative comparison is used to urge the reader to reflect with wisdom and recognize that the true duty of human birth is the higher pursuit of realizing the Supreme Self (Paramatman).