Chapter 8 uses several analogies to explain its philosophical points. What are some of these comparisons and what do they illustrate?

Chapter 8 employs several powerful analogies to convey its teachings on the nature of existence. To argue that a life focused only on basic functions is worthless, it compares such a human to dogs and pigs, a blacksmith's bellows (which breathes), and even trees. The most profound analogy is that of a lamp flame, which looks the same from beginning to end but is different every moment; this is used to illustrate the impermanent, ever-changing state of the human body and life itself. These comparisons serve to highlight the unique potential of human birth for spiritual realization, contrasting it with mere biological existence.