没头脑好开心没头脑还开心
[méi tóu năo hăo kāi xīn méi tóu năo hái kāi xīn]
'Carefree and Happy Without Worries / Still Happy Without Thoughts' implies contentment found in simplicity, not overthinking. It portrays embracing a carefree existence despite (or because) of lacking burdensome mental processes