Chapter 14 uses a specific analogy to describe worldly relationships. What is this analogy and what is the broader message about life's impermanence?

In Chapter 14, worldly relationships with family members like mother, father, wife, and son are compared to "pieces of wood floating in a river's current that meet together." This analogy powerfully illustrates their transient nature; they appear united for a moment, but a single wave can scatter them, and once separated, they may never meet again. This imagery is part of a broader message in the chapter about the impermanence of all worldly existence. Life is described as being as transient as a "flash of lightning in the clouds," and humanity is depicted as being "gripped by the serpent of Time." The chapter uses this perspective to urge readers to be cautious, remember the certainty of death, and not be deceived by the temporary nature of the world, thereby encouraging a turn towards spirituality.