Literature Reference: 出郭始知人代变，又须抛却古时钱。—— 《仙客归乡词二首 二》 Only after leaving the city walls did I realize the changes of generations, and thus had to discard the ancient coins. Source from 'Xiangui Xiangci Ershou 二'.
代: Substitute, act on behalf of, represent.
变: Alteration, modulation, transformation.
Meaning: The phrase 'dai bian' signifies the transformation of eras, embodying the wisdom of adapting to the times and progressing with them.