How does Chapter 8 use analogies to describe the fleeting and ever-changing nature of life and the human body?

Chapter 8 employs a powerful analogy to illustrate the transient nature of existence. It compares the body and life to the flame of a lamp, which appears to be the same from beginning to end but is actually different in every single moment. The text elaborates on this by noting how childhood, youth, and old age transition into one another without anyone noticing the exact moment of change. It states, "What is seen one moment perishes the next." This chapter also describes the physical body in stark terms as an impure vessel, a "washroom of excrement and urine," where death is an ever-present reality, highlighting its impermanence.