What metaphors does Chapter 14 use to describe the transient nature of the world and human relationships?

Chapter 14 employs powerful metaphors to illustrate the fleeting nature of our existence. It describes the world as being as transient "like a flash of lightning in the clouds," emphasizing its momentary and unpredictable quality. To explain the temporary nature of human relationships, the chapter uses the vivid image of family members being like "pieces of wood floating in a river's current that meet together." They appear united for a brief moment, but a single wave can scatter them, and once separated, they may never meet again, highlighting the impermanence of worldly bonds.