鬼迷心窍
[guĭ mí xīn qiào]
The literal meaning of '鬼迷心窍' is 'a ghost has bewitched one's heart.' This idiom describes someone who acts irrationally or is infatuated in an unhealthy manner, as though they have been misled by supernatural forces. It signifies being lost in thoughts or feelings that aren’t rational.