(idiom) extremely critical or of great importance; involving survival or death

a matter of life and death; a critical juncture where one either survives or perishes

a life-and-death crisis; a moment of extreme urgency where survival is at stake

to be deeply attached to one another through thick and thin; to depend on each other for survival; to stay together in life and death

A profound friendship where friends are willing to share both life and death together; friends who have gone through thick and thin together.

to share the same fate; to go through thick and thin together; used to describe a deep friendship or a very close relationship

The Buddhist concept of samsara, the endless cycle of birth, death, and rebirth driven by karma through the six realms of existence.

Life and death are determined by destiny, often specifically referring to the first half of the couplet [[生死有命，富贵在天|生死有命，富貴在天|sheng1 si3 you3 ming4 fu4 gui4 zai4 tian1]]

one's attitude toward and evaluation of life and death; an important component of one's [[人生观|人生觀|ren2 sheng1 guan1]]

To vow to stay together through life and death; describes a relationship that is extremely close and inseparable.

partners for life and death; a pair of companions who have gone through thick and thin together

not to know whether one is dead or alive; status unknown

a deep friendship where two people are willing to live and die together; can also refer to a friend with whom one shares such a bond; same as [[生死之交|生死之交|sheng1 si3 zhi1 jiao1]]

(idiom) to bring the dead back to life and make flesh grow on bare bones; describes a miracle or a profound act of kindness that is like being given a second life

life and death are determined by fate, wealth and honor depend on heaven; a fatalistic outlook on one's destiny and worldly success