Chapter 8 uses several comparisons to illustrate the futility of a purposeless life. Could you explain the analogies involving a blacksmith's bellows and a lamp flame?

In its philosophical discourse, Chapter 8 employs vivid analogies to make its points. It compares a human who only breathes without higher purpose to a blacksmith's bellows, which also breathes but is inanimate. This highlights that mere biological function is not enough. The chapter also uses the analogy of a lamp's flame to describe the nature of the body. It explains that like a flame, the body appears to be the same from beginning to end, but in reality, it is different in every single moment. What is seen one moment perishes in the next. This illustrates the transient and ever-changing state of our physical form, which we perceive as constant but is in a perpetual state of flux.