I once knew an old woman who never raised her voice. Not once, in all the years I knew her. When something upset her — and things did upset her, she was human after all — she would go very still and very quiet, and the temperature in the room would drop by several degrees. We all knew. Nobody said anything. The anger was there, enormous and present, but it had no name and no address and nowhere to go.

She died, I think, with a great deal unsaid.

Anger has a terrible reputation. We are taught, most of us, that it is the emotion to be managed, suppressed, apologised for. The person who loses their temper is the person who has lost control. And so we learn — especially those of us raised in cultures or families where harmony is the highest value — to swallow it. To smooth it over. To become, over time, very skilled at not knowing we are angry at all.

But anger is not the problem. What we do with it can be. That is a different thing entirely.

Aristotle made this distinction with characteristic precision in the Nicomachean Ethics. He was not interested in eliminating anger — he thought that that would be its own kind of failure. A person who feels no anger at genuine injustice, he wrote, is not virtuous. They are simply numb. What he asked for instead was orge — the right anger, at the right person, to the right degree, at the right time. Anger as a calibrated moral response rather than a weather event that happens to you. The goal was not less anger. It was more accurate anger.

This is harder than it sounds. Because most of us, by the time we feel anger, have already lost the thread of what it was actually about.

Here is what tends to happen. Something occurs — a comment, a decision, a small betrayal — and we feel a flash of something hot and immediate. But we don’t say anything, because the moment doesn’t feel right, or the relationship feels too fragile, or we have spent so many years being told that anger is ugly that we no longer trust it as information. So we push it down. And it doesn’t disappear. It finds somewhere else to live — in a sharpness of tone that surprises even us, in a disproportionate fury at something trivial, in a low, persistent dissatisfaction that we can never quite locate.

The Zen Buddhist teacher Thich Nhat Hanh wrote about this in Anger: Wisdom for Cooling the Flames with an image that I find impossible to forget. He said anger is like a crying baby. When a baby cries, you don’t put it outside and shut the door. You pick it up. You hold it. You try to understand what it needs. The anger is not the enemy — it is a signal, and it is asking for attention, and the worst thing you can do is pretend you cannot hear it.

What he suggested was not expression in the conventional sense — not telling the person immediately what they did — but first turning inward. Sitting with the anger long enough to ask: what is this actually about? What does it tell me about what I value, what I need, what boundary has been crossed? Because anger, when you listen to it carefully, is almost always pointing at something true. A need that isn’t being met. A line that has been repeatedly crossed. A version of yourself that has been asked, once too often, to make itself smaller.

The anger is not the problem.

The anger is the message. And like most important messages, it deserves to be read carefully before you decide what to do with it.