The quote highlights the fragility of civilization, likening it to a delicate plate balanced on a slender dowel. It suggests that civilization's stability is precarious, easily disrupted by a moment of inattention or external forces. When this balance is lost, the consequences can be catastrophic, leading to the downfall of society.
Furthermore, the imagery of mankind retreating to caves signifies a regression into primitive existence following the collapse of civilization. The remnants of past achievements, represented by weathered obelisks, serve as a stark reminder of the impermanence of human endeavors, ultimately reduced to mere fragments over time.