一期一会

"Ichigo Ichie conveys a Japanese aesthetic ideal relating to transience that, when translated into English, literally signifies “One Encounter, One Chance.” The philosophy behind it is that one should always do one’s best when meeting someone, treasuring each encounter as a once-in-a-lifetime event, even if it is a friend whom one sees often. For me, this phrase has brought awareness of the value of living each day, hour, minute, and second to the fullest and seizing each chance encounter that life unexpectedly brings. Though the ritual of meeting people follows a regular routine, this phrase stresses that each moment is a unique meeting to be lived intently, never to be repeated, as if today were the last time you might meet— in other words, this phrase teaches one to live his/her whole life now— the fullest in the moment." Original link