Maybe it starts as a thought. Something small, harmless, perhaps even inspiring.
Then, without really noticing, it becomes familiar. A groove we keep tracing because we already know the way.
That familiarity matters. Our brains are constantly learning from experience, and repeated thoughts, behaviours and interpretations can become easier to return to over time. But familiarity isn’t the same thing as truth, and something feeling natural doesn’t necessarily mean it began with us.
It’s strange, really, how something as intangible as an idea can influence behaviour, emotion and even the way we experience our bodies.
We don’t just collect beliefs like objects on a shelf. We use them to interpret what happens around us, anticipate what might happen next and decide how to respond.
Over time, some become so familiar that we forget they were ever ideas we adopted.
I sometimes think of it as wearing someone else’s version of reality, tailored by culture, stitched by repetition and perhaps hemmed in a little by fear or the need to belong.
Sometimes it fits beautifully. Sometimes it itches.
And sometimes we don’t realize we’re wearing it until something happens that makes us question the fit.
The Wiring of Belief
Neuroplasticity is the brain’s capacity to change through learning, experience and other influences.
Donald Hebb’s work in the twentieth century helped shape one influential account of how activity between neurons might strengthen their connections. The simplified phrase “neurons that fire together, wire together” came later, but it captures part of the idea.
The actual biology of learning is considerably more complicated than a single neural pathway being paved every time we repeat a thought.
Still, repetition matters.
Something we encounter again and again can become familiar and easier to retrieve. A belief that has been reinforced through relationships, emotion and experience may begin influencing what we notice and how we interpret new situations.
Someone repeatedly told they are “not good enough,” for example, may eventually start using that idea as a lens. A mistake becomes proof. Criticism confirms it. Success gets explained away.
Emotion can make experiences especially memorable, although there is no simple rule that fear, shame or excitement automatically stamps a belief permanently into the brain.
Our bodies are involved too.
A challenged belief can arrive with muscle tension, changes in breathing, a racing heart or a churn in the stomach. That doesn’t mean the body has confirmed whether the belief itself is true.
It means beliefs are not experienced in some separate intellectual compartment.
They happen inside living bodies.
Then there’s the world around us, a chorus of repetition disguised as ordinary culture.
Marketing has become extraordinarily skilled at attaching products to identity, insecurity and aspiration. You are not enough until you buy this, wear this, achieve this.
Create the discomfort. Offer the relief.
Not every advertisement works, and our brains don’t obediently wire every message into reality. But repeated cultural messages can become part of the information from which we build expectations about ourselves.
The same brain that learns familiar patterns can also learn something new.
That is the more interesting part of neuroplasticity to me.
Cognitive Dissonance: When the Idea Doesn’t Fit
There are moments when what we believe and what we experience stop sitting comfortably together.
Maybe someone we trust behaves in a way that challenges the story we have about them. Perhaps a community we belong to begins asking us to accept something that conflicts with our own observations.
Or maybe we hear ourselves saying yes when something in us very clearly wants to say no.
Leon Festinger used the term cognitive dissonance to describe the discomfort that can arise when our beliefs, attitudes or behaviours conflict.
That discomfort can involve physiological arousal as well as psychological tension, but it isn’t a biological truth detector. Feeling uneasy doesn’t automatically mean one side of the contradiction represents some deeper truth.
What matters is that something doesn’t fit.
People can respond to that tension in all sorts of ways. We may reconsider the belief, change our behaviour, seek more information or find an explanation that allows both things to coexist.
Sometimes those explanations make sense.
Sometimes we become remarkably creative in protecting something we aren’t ready to question yet.
And this is where belief can become deeply personal.
It’s one thing to discover we were wrong about an ordinary fact. It is another to question a belief that carries friendship, belonging, reputation, certainty or part of our identity with it.
Changing the belief may mean changing far more than an opinion.
Fear, Obligation and Guilt
Susan Forward and Donna Frazier used F.O.G., Fear, Obligation and Guilt, in their 1997 book Emotional Blackmail to describe pressures that can be used to maintain compliance in relationships.
I still think it’s a useful image.
Fear can make questioning feel dangerous. Obligation can make compliance feel like duty, while guilt can make choosing differently feel like betrayal.
These are normal human emotions, and their presence doesn’t automatically mean someone is manipulating us.
The issue is when they are repeatedly used to make disagreement costly.
The same dynamic can appear in groups or belief systems when belonging becomes conditional on accepting the group’s interpretation.
If you’ve invested years, relationships, money, training or identity into something, reconsidering it can involve much more than deciding an idea was wrong.
There may be grief in it.
Embarrassment.
Relief.
Anger.
Or the uncomfortable realization that something which once gave you certainty no longer fits.
That can make believing harder feel easier than letting go.
Unlearning Without Erasing
I find the word unlearning interesting because it sounds as though we are deleting something.
We don’t really work that way.
New learning doesn’t erase the history that came before it. We may still remember the belief, recognize the old response or feel the pull of something familiar long after we’ve stopped agreeing with it.
Awareness can interrupt automatic agreement, but noticing a pattern doesn’t magically dissolve the neural activity associated with it.
Sometimes we recognize something long before our behaviour catches up.
That isn’t necessarily failure. It’s learning.
We may begin to notice the assumptions we automatically bring into a situation, then discover through experience that another interpretation is possible.
Perhaps we respond differently in a conversation. We test a boundary. We allow ourselves to disagree. Something we feared would happen doesn’t happen, or perhaps it does and we discover we can handle it.
New experience gives the brain new information.
Over time, the old route may no longer be the only route available.
I like that much more than the idea of “rewiring ourselves” into some ideal state.
We are not broken electrical boards.
We are living things that keep learning.
Thought, Emotion, Imagination and Awareness
Our thoughts help us interpret experience. Emotions draw attention towards what matters to us. Physical sensations give us information about what is happening inside and around us.
And imagination brings another layer.
It lets us rehearse possibilities, remember experiences, anticipate what might happen and create things that don’t yet exist.
That can be enormously useful.
It can also keep us circling an old story.
If we repeatedly imagine danger, rejection or failure, those expectations may influence what we notice. If we repeatedly rehearse a particular interpretation, alternative explanations can become harder to see.
But imagination isn’t the enemy.
It is also one of the ways we discover that things could be different.
This is why awareness interests me more than forcing a particular state.
Awareness gives us a little room between what happens and the first explanation that arrives with it.
We can notice the thought, the feeling and the body response without assuming any one of them has delivered the entire truth.
Sometimes what we notice confirms the story.
Sometimes it changes it.
Sometimes we simply don’t know yet.
There’s freedom in that too.
What About Coherence?
I still like the word coherence, but I mean it differently than some of the more mystical or biohacking versions floating around.
I’m not talking about achieving perfect brainwaves, ideal heart rhythms or some permanently regulated nervous system.
For me, coherence is much more ordinary.
It’s when our understanding, values and behaviour make enough sense together that we aren’t constantly fighting ourselves to maintain the story.
That doesn’t mean permanent calm.
Sometimes coherence involves grief. Sometimes it means making a difficult decision or acknowledging something we would rather not know.
We can feel uncomfortable and still be clear.
We can change our perspective without erasing the person we were before.
And we can admit that a belief once helped us while recognizing that it no longer does.
Maybe that’s what I find most interesting about awareness.
Not transcendence.
Not escape.
Just enough room to notice what we’re wearing and decide whether it still fits.
A Little Reflection
What beliefs have become so familiar that you rarely notice yourself using them?
Which ideas came from family, culture, education, relationships or communities and quietly became part of the way you see yourself?
And when something challenges one of those beliefs, what happens?
There is no need to tear apart every assumption we carry. Familiar doesn’t automatically mean harmful, any more than unfamiliar automatically means liberating.
But perhaps we can stay curious about the fit.
Maybe we don’t have to keep wearing every belief we’ve ever tried on.
Some can be altered.
Some can be passed on.
Some can simply be taken off.
And perhaps there are a few we choose to keep because, after looking properly, they still fit beautifully.
About This Series: The Human Story of Belief
This is Part Two of Anatomy of Ideology.
Part One: The Anatomy of Ideology looks at how belief systems develop, organize communities and sometimes become instruments of conformity or control.
Part Two: When Belief Wears the Brain explores how learning, repetition, emotion and experience contribute to what feels familiar and true.
Part Three: What’s Been Left Out looks at psychological models and what can disappear when the explanation becomes more important than the human being.
Part Four: When We Are Infectious turns towards how beliefs, emotion and behaviour move between people and through groups.
The Great Pre-Tender continues the exploration through imagination, identity and the stories we rehearse into experience.
Sources and Further Reading
Donald Hebb, The Organization of Behavior: A Neuropsychological Theory (1949)
Gallistel and Matzel, The Neuroscience of Learning: Beyond the Hebbian Synapse (2013)
Leon Festinger, A Theory of Cognitive Dissonance (1957)
Cancino-Montecinos et al., On the Characteristics of the Cognitive Dissonance State (2020)
Susan Forward and Donna Frazier, Emotional Blackmail: When the People in Your Life Use Fear, Obligation, and Guilt to Manipulate You (1997)
Sue McKenzie
Originally published 12 October 2025 Updated September 2026