There is a photograph of you somewhere — on a shelf, in a shoebox, folded inside a drawer you rarely open — where you are completely absorbed in something that serves no purpose whatsoever. Maybe you are up to your elbows in mud, or spinning until the world blurs, or laughing so hard your eyes have disappeared. You are not performing happiness in that photograph. You are simply inside it, unselfconsciously, the way a cat is inside a patch of sunlight without once wondering whether it deserves to be there.

When did that change? Not all at once, of course. It happened the way a garden path becomes overgrown — so incrementally that you look down one day and realise you can barely see the stones any more. Somewhere between acquiring responsibilities and acquiring a reasonable facsimile of wisdom, most of us quietly filed play away under the heading of things we have grown out of, like sugar cereal and believing in the easy kindness of strangers. We did not decide to stop. We simply filled every available hour with something that could be justified, measured, or ticked off a list. And the space that play once occupied closed over, smooth and unremarkable, like water filling a handprint.

What nobody warns you about adulthood is how thoroughly it colonises your sense of what time is for. Time becomes currency. It must be spent wisely, saved carefully, never frittered. The language we use around leisure — "treating yourself," "allowing yourself," "finding time" — reveals the guilt baked into it, as though enjoyment is a small transgression we must earn through prior suffering. We plan a walk in the woods and bring a podcast. We sit by the sea and half-compose an email in our heads. Even our rest tends to wear the costume of productivity: restorative yoga, mindful colouring, ten minutes of meditation tracked on an app. We have forgotten how to do something for no reason at all, without monitoring its effects on our wellbeing.

And yet the body remembers. This is the thing that surprises people — not the mind, which is perfectly capable of constructing a thousand sensible arguments against wasting an afternoon, but the body. Give it half a chance: the cold, particular joy of swimming in water that is too cold. The concentration of kneading dough. The way singing something loudly in an empty car rearranges something inside your chest that had gone tight without your noticing. These are not trivial. They are dispatches from a part of yourself that predates your qualifications, your responsibilities, your carefully curated sense of who you have become. Play is not the opposite of seriousness. It is what seriousness needs to stay alive.

There is a peculiar shame that can attach itself to play as we age, and it is worth naming directly, because naming it loosens its grip. The shame says you are too old, too dignified, too tired. It says that grown women who throw themselves into things wholeheartedly — dancing badly in the kitchen, learning to throw pots with hands that shake from inexperience, spending a whole Sunday on a jigsaw for no audience — are somehow not taking life seriously enough. It confuses levity with shallowness. But consider: the women you most admire, the ones who seem to carry their age with something like grace — are they not also the ones who have kept some corner of themselves untamed? Who still find certain things genuinely, helplessly funny? Whose curiosity has not yet settled into the comfortable certainty of having seen it all?

What would it mean to you, right now in this particular season of your life, to let yourself be a beginner at something? Not to master it, not to post about it, not to make it mean anything about your worth or your productivity, but simply to enter the clumsy, slightly humiliating, oddly exhilarating space of not knowing what you are doing yet? There is a quality of attention that emerges only in those moments — a kind of bright, animal alertness that the ordinary management of a life rarely calls for. The neurologists will tell you it is good for you, and they are right, but that is almost beside the point. The point is that you come back from it more yourself, somehow. Less managed. Less curated.

Play is also, quietly, an act of rebellion against a particular story ageing tells us. That story says we are gradually shedding possibility, narrowing towards a version of ourselves that is increasingly defined by what we can no longer do. Play refuses that story without making a fuss about it. It simply goes on existing in the present tense, indifferent to the calendar. An eighty-year-old absorbed in a game of cards is occupying exactly the same psychological territory as a child absorbed in building something out of cushions and optimism. The self that plays is not a younger self. It is simply a self that has temporarily put down the weight of its own biography.

So if there is an afternoon in the next week or so that seems inexplicably free — a gap that arrives like an uninvited gift — I wonder what you might do with it if you let it belong entirely to you. Not to recovery, not to improvement, not even to rest in any deliberate sense. Just to the oldest, least complicated version of your desire: what sounds like it might be interesting, or ridiculous, or unexpectedly wonderful?

You do not need to justify what you find there. You do not need to report back.

The photograph in the drawer already knows something you have not yet let yourself remember.