swift passage of life; impermanence and the nearness of death
A yojijukugo expressing the Buddhist idea that life is fleeting and death can come at any moment. Often used in solemn or reflective contexts.
It was an event that made one feel the swift passage of life.
彼は無常迅速を悟り、出家した。
Realizing the impermanence of life, he entered the priesthood.