Memento mori symbols explained: skulls, hourglasses, candles, and more

Updated July 2026 · by Your Hours Are Numbered

Memento mori symbols are visual reminders that life is short. The skull, hourglass, guttering candle and wilting flower each say the same thing in a different key: time runs out, so spend it on purpose.

Long before anyone wrote "memento mori" on a mug, people carved the idea into rings, painted it into still lifes, and set it on their desks. The symbols were a way of keeping mortality in the room without having to speak it.

What are memento mori symbols?

Memento mori symbols are objects and images used to represent the certainty of death and the shortness of life. The Latin phrase means "remember that you must die," and for most of history that reminder travelled as pictures rather than words — because a picture sits in a room and keeps working while you look away.

They are not meant to frighten. They are meant to correct a bias. Left alone, the mind treats time as endless; a skull on a shelf argues quietly with that assumption every time you glance at it. If you want the full background to the idea itself, start with what is memento mori.

The core symbols and what each one means

Most memento mori imagery draws from a small, stable vocabulary. Each symbol makes the same argument from a slightly different angle.

Symbol	What it represents	The angle it takes
Skull	Death itself	Blunt and final — the end, plainly
Hourglass	Passing time	Not the end, but the draining
Guttering candle	A life burning down	Fragile, easily snuffed out
Wilting flowers	Fading beauty	Lovely things are already dying
Ripe or rotting fruit	Decay after fullness	Even the good spoils in time
Clocks and watches	Measured, spent time	Every hour is counted
Bubbles	The suddenness of death	Here, then gone with no warning
Smoke	Life's insubstance	Present, then dispersed

The skull and hourglass do most of the heavy lifting, but the softer symbols matter too. A skull says you will die. A wilting tulip says something harder to dismiss: the beautiful thing in front of you is on a clock as well.

The skull

The skull is the plainest of the set. It cannot be sentimentalised, and it looks the same for everyone, which is part of the point — memento mori is a great leveller. In memento mori rings and watches, a tiny skull kept the reminder literally at hand, so mortality stayed with a person through an ordinary day.

The hourglass

If the skull points to the destination, the hourglass points to the journey running out. It is arguably the more useful of the two, because it dramatises the present rather than the end. Sand does not fall all at once; it falls now, grain by grain, whether or not you notice. That is closer to how hours actually leave you.

The candle and the extinguished flame

A burning candle stands for a life in progress; a smoking, just-extinguished one stands for a life ended. The candle adds fragility to the picture — a life is not only finite but easily interrupted, snuffed by a draught. The half-burned candle is a favourite because it holds both facts at once: still alight, already shorter than it was.

Flowers, fruit, and bubbles

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These are the tender symbols, and they carry the part of memento mori that gets forgotten. Life is not only serious work against the clock; it is also the peach, the tulip, the soap bubble catching light for a second. Their message is not "hurry" but "notice" — enjoy the good thing now, because its schedule is already set.

Why so many symbols for one idea?

Because a single symbol goes invisible. Hang one skull on the wall and within a week your eye stops registering it; it becomes furniture. The tradition kept inventing new images — vanitas painters crammed dozens into a single canvas — partly to keep the reminder from fading into the background.

That is the real difficulty with memento mori, and it has not changed. The symbols were always trying to solve a maintenance problem: how do you keep a truth vivid after it stops being novel? Different centuries answered with different objects, but the challenge was constant.

Where these symbols came from

The vocabulary was assembled over a long time from several traditions:

Roman practice gave us the earliest habit — the servant behind a triumphant general, murmuring that he too was mortal.
Christian art built the vanitas still life, loading tables with skulls, hourglasses and guttering candles to argue that worldly things are fleeting.
Stoic philosophy supplied the reasoning: time is the one resource you cannot earn back, so treat each hour accordingly.

The symbols were not owned by any one of these. For a closer look at the faith question, see is memento mori religious. And for how painters turned a shelf of objects into a full argument, see memento mori in art: what vanitas paintings were really trying to say.

What a modern memento mori symbol looks like

The old symbols shared a design goal: make finite time visible enough to change behaviour. That goal still holds; only the medium has moved.

A grid of your life in weeks does what a skull did, more literally — roughly four thousand squares for a full life, most of them already filled in. It is hard to look at and still believe time is endless. A month of graded hours does something similar at close range: one honest sentence per hour, marked green for lived, amber for neutral, red for wasted, until the days fill in with colour you cannot argue with.

The difference from a candle or a bubble is only that the reminder updates. A skull says the same thing forever; a filling-in grid tells you how this week actually went — where the hours were lived and where they were quietly lost. That distinction, lived versus lost, is the whole of the old symbols carried forward. If you want the mortality made concrete, our life in weeks view is the plainest place to start, and the app turns the daily version into a habit.

Whichever symbol speaks to you — the skull, the hourglass, the tulip already past its best — they all say one sentence. The hours are numbered. Knowing it is what makes them worth spending well.

FAQ

What is the most common memento mori symbol?

The human skull. It is the most direct image of mortality — instantly recognisable, hard to sentimentalise, and present in everything from Roman mosaics to memento mori rings. Most other symbols work more gently by comparison.

What does an hourglass symbolise in memento mori?

The steady, unstoppable passage of time. Unlike the skull, which points to the end, the hourglass points to the running out — the fact that your hours are draining now, whether or not you are watching.

Why are wilting flowers a memento mori symbol?

Because beauty fades on a visible schedule. A cut flower is lovely and already dying, which makes it a quiet reminder that pleasant things are temporary and worth attending to while they last.

Are memento mori symbols religious?

Some are, some are not. The skull and hourglass appear in both religious and secular art, while symbols like the extinguished candle carried specific Christian meaning. The core reminder — remember you will die — predates and outlives any single faith.