Wonderfull Memento Mori 17th. century Flemish marble skull
A Latin phrase translated as "Remember you must die" (and the origin of the English word memento, which appeared as memento mori, "remembrance of death". It names a genre of artistic creations that vary widely from one another, but which all share the same purpose: to remind people of their own mortality and the punishment they will receive if they transgress the rules of their religion.
The phrase has a tradition in art that dates back to antiquity.