One famous Roman mosaic from Pompeii shows a skull balanced on a wheel, flanked by symbols of wealth and poverty, with a plumb line hanging above to mark equality in death. Later, European painters filled vanitas still lifes with skulls, burned-down candles, and hourglasses, visualising the same idea for new audiences and new theologies.

Memento mori imagery can focus attention, unsettle, instruct, console, decorate, or do several of these at once. A skull beside wealth, books, flowers, or a watch changes how those things may be read, but no object guarantees one moral response. Its invitation is sharper than a slogan: place the present beside a finite life and notice what changes for this viewer, in this setting.

Placed alongside funerary jars and scavenging birds, memento mori objects offer a conceptual parallel across very different mechanisms: ritual care for a body, ecological use of carrion, and images that direct a viewer toward mortality. These practices are not culturally interchangeable, and minds do not all prefer to forget death. The side-by-side encounter asks how material things can carry attention toward an ending.

Some people kept skulls or skull-shaped objects near spaces of study, prayer, dress, or display; many more encountered mortality through paintings, jewellery, tombs, books, and sermons. There was no single centuries-long habit shared by 'scholars,' and these objects could be devotional, moralising, fashionable, intimate, frightening, or decorative at once.

A memento mori does not guarantee clarity or escape morbidity. It stages an encounter. The skull can ask what present concerns look like beside a finite life, but the answer belongs to the viewer and to the historical setting in which the object was made.