I keep seeing parts of modern duilian's made of one 成语 + three random characters.
Something like: 国泰民安 + 增财富
- How did duilian evolve to this level?
I keep seeing parts of modern duilian's made of one 成语 + three random characters.
Something like: 国泰民安 + 增财富
This observation is merely coincidental. The first 4 characters need not come from classical Chinese idiom (成語), and the remaining 3 are by no means random.
Couplet (Duilian) has specific rules. The linked article has a list of requirements and its etymology.
For example, the cliché duilian
天增歲月人添壽
春滿乾坤福滿門
"天增歲月" is not a recognized chengyu, but means "As heaven attains greater age"; "人添壽" is not random but has to relate to it, meaning "people enjoy longer years".
Moreover, a line of 7 characters is common but it is not a requirement.
For example, the famous (but modern (19th century)) couplet in Temple of Zhuge Liang in Chengdu
能攻心則反側自消從古知兵非好戰
不審勢即寬嚴皆誤後來治蜀要深思
also meet the requirement.
