For two days you see your life clearly, you know exactly what matters and what you have been putting off.
By week three it is gone.
People have been trying to hold on to those two days for two thousand years. They gave it a name.
Memento mori is Latin for remember that you will die.
As a practice it means holding your own ending in view on purpose, at a set time, long enough that it changes what you do next.
The tradition runs from Stoic Rome through Buddhist monasteries to Dutch still lifes, and it exists for one reason: what you would regret arrives earlier, while you can still act on it.
Where it comes from
Rome
Seneca wrote to his friend Lucilius that we die every day, because every day some part of life is taken away (Letters, 24).
Epictetus told his students to keep death daily in front of their eyes, death above all, and they would never entertain a mean thought again (Enchiridion, 21).
Marcus Aurelius wrote the Meditations in Greek, in camp, as private notes he never meant anyone to read.
The two Latin words came later.
The oldest version of the origin story is a single line in Tertullian, around 200 CE: a slave riding behind a general during his triumph, calling out respice post te, hominem te memento.
Look behind you, remember that you are a man.
That is one Christian author describing a Roman ceremony, and the evidence that Rome ran it as a fixed ritual is thin.
Worth knowing before you repeat it.
The monasteries
In Buddhism the practice is maranasati, mindfulness of death.
In one discourse (Anguttara Nikaya 6.19) the Buddha asks his monks how they do it.
One says he considers that he might not live another day. Another says not past a single meal.
The Buddha calls both of them careless. Only the monk who holds it breath by breath is doing the real thing.
The manual
Around 1415 an anonymous Dominican wrote the ars moriendi, a Latin handbook on dying well, probably at the request of the Council of Constance.
A shorter illustrated edition appeared around 1450 in the Low Countries, eleven woodcuts, and it spread across Europe in translation.
Six chapters, at a time when most households owned no book at all.
The paintings
In the 1600s Dutch painters built still lifes around a skull, a stack of books, a snuffed candle.
Leiden, a university town, favored the version with books.
Harmen Steenwijck, David Bailly and Pieter Claesz are the names that survived.
Vanitas comes from Ecclesiastes: vanitas vanitatum, omnia vanitas. These hung in the rooms where families ate dinner.
Why most reminders stop working
Today the practice has shrunk to a few seconds.
A ring. A tattoo. A wallpaper.
An app counting down your remaining weeks. The first time you see it, something moves in you.
By the third week your eye slides past it.
There is a measured difference between the short version and the long one.
Psychologists call the short one mortality salience: a brief prompt about your death, after which people tend to defend themselves and, in several studies, want more.
The long one they call death reflection: a slow, specific scenario about your own dying, with questions about how you lived and who you touched.
In a 2004 study by Philip Cozzolino and colleagues, the people who went through the reflection version came out measurably less greedy, and the effect was strongest in those who had started out most focused on money and status.
Same subject, opposite direction.
The tradition already knew.
It is why the Buddha called day-interval contemplation careless, and why the ars moriendi runs to six chapters.
Depth is the active ingredient here, and duration is how you get it.
From five minutes to a full hour
What is the simplest memento mori practice to start today?
End your day with a five-minute review at a fixed time, before you pick up your phone.
Three questions: what did I do today that I would want to have done, what did I dodge, and what would I take back.
Write two lines by hand. Do it seven nights in a row and watch the fourth one.
How do you sit with your mortality for ten minutes?
Lie down, eyes closed, no music.
Follow your breathing and hang one sentence on every out-breath: this one could be the last. Ten minutes on a timer.
When your mind runs off to tomorrow, come back to the breath you are actually in.
This is maranasati, stripped down to what a beginner can hold.
What do you write when you put your last hour on paper?
Set a timer for twenty minutes and write it longhand, in the present tense, as though it is happening now. Who is in the room.
What you are still trying to say. What you would give to have back.
Then date the page and put it where you will find it in a year.
How do you keep it alive after the first time?
Hang an action on it.
At the end of every session, name one thing you will do inside seven days: a message, a phone call, a booking, a sentence you have been swallowing for years.
Send one of them before you close the notebook. Insight fades fast. A sent message stays sent.
What is the most intense way to face the end of your life?
Give it a full hour, in the dark, alone, phone in another room, and walk through your ending in order: the news, the last people, the last words, the quiet after.
In Seoul I did this inside a closed coffin, hands and feet bound, for thirty minutes.
The hour that follows is where the change sits.
What I built, and where it sits
I am Julian van der Wouden.
I flew for ten years, first at Transavia, then at KLM. The coffin in Seoul came after that, and the Last Hour Experience came out of the coffin.
It is a guided audio hour, cinematic, that you do alone.
You live through your own last hour from the inside, and you come out into a set of questions that turn what surfaced into choices.
Think of it as the fifth practice with the structure carried for you, scored and paced so you go further than you would on your own.
You pay once. You begin whenever you are ready.
One purchase. Return every year. No subscription.
Questions people ask
Is memento mori morbid?
From the outside it looks that way.
In practice it narrows your attention to the handful of things you would defend at the end, and it hands you back a week with room in it.
When the coffin lid opened in Seoul, the first thing I registered was the light on the wall.
Most of the effect shows up in the days after, in what you stop postponing.
Is this Stoic or Buddhist?
Both, and they arrived at it separately.
The Roman Stoics used memento mori to steady judgment and take the sting out of loss.
Buddhist maranasati loosens attachment and sharpens attention. Christian Europe added the ars moriendi and the skull on the table.
Nobody owns it, and you can practice it without signing up to any of them.
How often should you do it?
Small and daily, large and yearly.
Five minutes every evening keeps it awake. One full hour a year is what moves the things you have been carrying for a decade.
It usually goes wrong when people do the big one once, feel changed for a week, and let the small evenings slide.
What if someone close to me died recently?
Then wait.
Fresh grief already is the practice, at full volume, without your consent.
Give it months, and come back when you want to look at your own life rather than theirs.
If you are in treatment or in a crisis, check with your doctor first. This is reflection, and it sits outside of care.
Sources
- Seneca, Letters 24
- Epictetus, Enchiridion 21
- Tertullian, Apologeticus 33.3
- Anguttara Nikaya 6.19
- Cozzolino, Staples, Meyers and Samboceti (2004), Personality and Social Psychology Bulletin 30, 278-292
One last thing
This practice is two thousand years old because it keeps working, and it keeps working because it asks something of you.
Reading about it changes nothing. Five quiet minutes tonight does.
So take the smallest form on this page and do it before you go to sleep.
That is where it starts, every time, for everyone who has ever kept it up.