be in agony, worry
悶 centers on intense inner distress: being in agony or deeply worried, as if the heart is trapped and struggling.
悶 combines 門 (gate) with 心 (heart), suggesting a heart confined behind a gate, which conveys the idea of inner agony or worry.
A heart 心 trapped inside a closed gate 門 is in agony, unable to escape its worry.
For モン, imagine a monk (モン) meditating behind a gate, but his heart is still full of worry.
fainting in agony
to writhe (in pain); to be in agony
anguished; distressed; worried; discontented
anguish
trouble; quarrel; dispute
agony; anguish
worry; agony
writhing (in agony)
agony; anguish
small quarrel; dispute; run-in; issue; trouble
death in agony
anguish; mortification
anger; resentment; indignation; chagrin; irritation
anguish; agony
anguish; agony
to writhe (in agony)
driving away melancholy