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

vitally important; of critical importance to one's survival

to concern one's vital interests; involving great stakes or consequences. Refers to a situation where there is a close relationship with one's benefits and harms. The character [[攸|攸|you1]] means "where" or "place" and should not be confused with [[悠|悠|you1]]

a critical situation where survival is at stake; a make-or-break matter