心静自然凉

Traditional (Taiwan): 心靜自然涼

xīnjìngzìránliáng ㄒㄧㄣ ㄐㄧㄥˋ ㄗˋ ㄖㄢˊ ㄌㄧㄤˊ

    • a calm heart keeps you cool (idiom)

Character by character

Saying俗语俗語

Proverb谚语諺語 · In everyday use

Literally
a calm heart is naturally cool
Meaning
If your mind is at peace, you feel cool even in heat; it is also used to advise staying calm.

Sources