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Have you ever noticed how a single thought can suddenly change how you feel?
One moment everything seems fine. Then a thought appears—I’m going to mess this up or They probably don’t respect me—and just like that your mood shifts.
Most of us assume those thoughts belong to us.
They sound like us. They use our voice. They appear instantly and often with conviction.
But that assumption is one of the biggest misunderstandings about our nervous system.
Much of what we hear internally isn’t coming from a thinking being at all. It’s coming from what I call the Automatic Brain (AB)—our primitive survival system.
The AB evolved to protect us from danger. For most of human history that danger was physical: predators, starvation, enemies from another tribe. When the AB sensed threat, it triggered a rapid fight-or-flight response.
That wiring still lives in us today.
The problem is that modern life rarely presents the kinds of threats the AB was designed to handle. Instead of tigers and spears, the AB now reacts to rejection, embarrassment, uncertainty, and comparison.
And when the AB senses those threats, it does what it has always done—it prepares us to fight or flee. One of the ways it does this is by generating fear-based thoughts meant to warn us of danger.
And you’ve no doubt heard those thoughts.
I’m going to mess this up.
They don’t respect me.
Everyone else has their life figured out except me.
These thoughts feel personal. But they are often nothing more than fear signals generated by the AB.
In other words, they’re not insights.
They’re alarms.
Imagine a smoke detector that goes off every time you make toast. Eventually you stop trusting the alarm. The device isn’t malicious—it’s just overly sensitive.
Your AB works the same way.
It reacts to possibility as if it were probability. A small risk can quickly become a potential catastrophic outcome in your thinking. The closer you get to something meaningful—starting a project, entering a relationship, making a change—the louder those fear-based thoughts often become.
Ironically, the louder the voice becomes, the more likely it is that you’re approaching something important.
And what many people don’t realize is that there is another part of your being—one that is more than just a bundle of nerve cells like the AB.
I call it the Mind.
You may view it as your soul. Or call it your heart. Or call it intuition.
The Mind doesn’t shout. It doesn’t panic. It doesn’t compete or compare.
Instead, it speaks quietly.
You’ll figure this out.
You don’t need to prove anything.
Take the next step.
The AB pushes you away from uncertainty through fear-driven thoughts. The Mind helps you move through uncertainty with clarity. And unlike the AB, the Mind never generates thoughts that are violent, self-deprecating, or cruel.
The challenge is that the AB speaks first and loudest. Its voice feels urgent. It triggers physical sensations—tightness in the chest, racing thoughts—that make its warnings seem real.
But urgency is not the same as truth.
Learning to recognize the difference between these two voices may be one of the most important skills a person can develop.
When the voice inside says retreat, pause.
Ask yourself a simple question:
Is this fear talking…
or is this the truth?
More often than not, fear is simply doing what it was designed to do.
And more often than not, fear is lying—which is exactly why I wrote Fear Is a Liar.
Related: Pain, Fear, and Routine Often Come From Same Habit Loop