Memento mori: life is brief, so be grateful for what you have and do not take it too seriously.
Do not take life too seriously. You will never get out of it alive.
Memento mori is a useful reminder that life is finite. That thought can sound sombre, but it can also help put everyday worries in perspective.
We have a lot to be grateful for, even when the day is ordinary or imperfect. Remembering that makes it a little easier to appreciate what is already here.