左眼会陪右眼哭右眼会陪左眼笑
[zuŏ yăn huì péi yòu yăn kū yòu yăn huì péi zuŏ yăn xiào]
Describes how one's eyes can shed tears together or smile as a pair. This implies a kind of inherent unity within oneself, experiencing both sadness and joy side by side, highlighting human resilience.