Ichi-go ichi-e is an underrated concept 🇯🇵

Treasure the unrepeatable nature of a moment.

It means:  "for this time only", and "once in a lifetime" and it's a reminder to cherish any gathering that you may take part in, and reflect on the fact that any moment in life cannot be repeated; even when the same group of people get together in the same place again, a particular gathering will never be replicated, and thus each moment is always a once-in-a-lifetime experience...