The Therapist's Hazel Tree: Learning to Trust What You Know

August belongs to the hazel.

At this time of year the branches are heavy with nuts, feeding birds, squirrels and anything else fortunate enough to arrive before the squirrels do. There is a generosity about hazel that I have always admired. It offers what it has grown without making a fuss about it.

In Celtic tradition, hazel is associated with wisdom. Not knowledge. Wisdom. The distinction has been on my mind lately. Perhaps because I spend so much of my working life sitting with people who know a great deal. Clients often arrive carrying hard-won wisdom gathered through grief, recovery, heartbreak, parenting, burnout, loss and survival. Yet they rarely recognise it as wisdom. They see only the places where they still feel uncertain. Therapists are often no different.

One of the things that has surprised me most over the years is how many experienced therapists still carry a quiet sense of self-doubt. Not because they are incompetent. Quite the opposite. Some of the most thoughtful, ethical and reflective practitioners I know are also the ones most likely to leave a session wondering whether they missed something important. Perhaps you've experienced it yourself.

You leave the room and begin replaying the conversation. You wonder whether you should have challenged a little more directly. Whether you stayed with the emotion long enough. Whether your interpretation landed as intended. Whether another therapist would somehow have known exactly what to do. The assumption seems to be that experience eventually cures uncertainty. That one day we will reach a magical point where we sit down with a client and simply know.

No doubts.

No questions.

No moments of wondering.

Just calm clinical certainty.

I've never met that therapist.

What I have met are therapists who have become more comfortable living alongside uncertainty. And I think there is a difference. When I first trained, I believed expertise would arrive through knowledge. Another book. Another course. Another model. Another theory. If I could just learn enough, perhaps I would eventually feel confident.

Years later, I still love learning. I suspect most therapists do. We are curious by nature. We gather ideas and frameworks in much the same way the woodland gathers seeds. But somewhere along the way I realised that knowledge and wisdom are not quite the same thing.

Knowledge tells us what attachment theory says.

Wisdom notices what is happening in the room right now.

Knowledge understands transference.

Wisdom notices the feeling that has quietly appeared between therapist and client.

Knowledge explains a pattern.

Wisdom recognises it before it has fully revealed itself.

The longer I practise, the more interested I become in those quieter forms of knowing. Not because they are infallible. Far from it. Clinical intuition is not magic. It can be wrong. It can be shaped by our own history, assumptions and blind spots. This is precisely why supervision matters. Not as a place where someone wiser hands down the correct answer, but as a place where observations can be tested, explored and understood.

Good supervision has rarely given me certainty. What it has often given me is clarity.

The space to think. The opportunity to slow down. The chance to distinguish between anxiety and information. Between assumption and observation. Between what I know and what I fear.

I think this is where wisdom grows. Not in certainty, but in reflection. Not in having the answer, but in remaining curious enough to keep asking the question.

The hazel tree does not become wise because it gathers more information. It becomes wise because it remains rooted while continuing to grow. Each season adds something. Each year leaves its mark. The tree is not trying to become an oak or a birch. It is simply becoming more fully itself. Perhaps the same is true for therapists.

Many of us spend the early years of practice looking over our shoulder, comparing ourselves to colleagues, wondering whether we measure up. We search for the right model, the right intervention, the right words. Over time, something gentler can emerge.

• A growing trust in our observations.

• A deeper respect for the relationship.

• A willingness to sit with not knowing.

• A recognition that what we bring to the room is not just what we have learned, but who we have become.

That feels much closer to wisdom.

And perhaps that is what the hazel has been trying to teach all along.

Not that knowledge is unimportant.

But that eventually there comes a point where gathering more information is no longer the task.

The task is learning to trust what has already taken root.

From the Glade

Most therapists I know carry far more wisdom than they realise.

The difficulty is that wisdom rarely feels impressive from the inside.

It often feels like uncertainty, curiosity and the willingness to keep paying attention.

Perhaps the real work is not learning more.

Perhaps the real work is trusting what you already know.