A Book That Found Me at the Right Moment
I picked up Joseph Murphy’s The Power of Your Subconscious Mind at a secondhand bookstore when I was thirty. I wasn’t looking for it. I was killing time while my car was being serviced across the street. The spine was cracked, the pages were yellowed, and someone had underlined half the passages in faded pencil. I opened it randomly and landed on Murphy’s treatment of Proverbs 23:7. What I read there made me sit down in the aisle and keep reading for the next hour.
Here’s the verse:
“For as he thinketh in his heart, so is he.” – Proverbs 23:7 (KJV)
Seven words. You could fit them on a sticky note. And yet Joseph Murphy considered this single line one of the most important psychological truths ever recorded.
Why Murphy Said “Heart” Is the Key Word
Most people focus on “thinketh” when they read this verse. They assume it means something like “positive thinking”, that if you repeat nice thoughts in your head, good things will happen. Murphy was careful to point out that this misses the entire point.
The operative word, he said, isn’t “thinketh.” It’s “heart.”
“The Bible uses the word ‘heart’ to mean the subconscious mind. ‘As a man thinketh in his heart’ means as a man feels and believes in his subconscious mind. It is not what you think consciously that matters, but what you feel as true deep within you. Your subconscious assumptions, beliefs, and convictions dictate every condition of your life.” – Joseph Murphy
This distinction changes everything. You can stand in front of a mirror and say “I am wealthy” a thousand times, but if your subconscious belief (the feeling in your “heart”) says “I’ll never have enough,” guess which one wins? Murphy’s answer was unequivocal: the subconscious wins every time, without exception.
The Two Minds and the Ancient Wisdom
Murphy taught that we operate with two phases of mind: the conscious and the subconscious. The conscious mind is the thinker, the chooser, the one reading these words right now. The subconscious mind is the doer, the vast, powerful engine that runs your body, stores every memory, and faithfully creates your outer world to match your inner beliefs.
The writer of Proverbs, Murphy argued, understood this thousands of years before modern psychology gave it a name. “Thinketh in his heart” isn’t about surface-level thinking. It’s about the deep impressions that have been accepted by the subconscious as true.
Think about that for a moment. You might consciously want a loving relationship, but if your subconscious is imprinted with the belief that “people always leave” (from a childhood experience, a painful breakup, something a parent said) then your subconscious will arrange your life to confirm that belief. It’s not punishing you. It’s simply doing its job, which is to externalize whatever you’ve accepted as true in your “heart.”
Murphy’s Practical Method for Changing the Heart
What excited me about Murphy’s approach was that he never left things at the theoretical level. He always gave you something to do. His interpretation of Proverbs 23:7 came with a clear method for actually changing what you “think in your heart.”
He called it the drowsy-state technique, and it’s built on a simple principle: the subconscious mind is most receptive to new impressions in the moments just before sleep, when the conscious mind’s critical faculty relaxes.
“Just before you go to sleep, in that drowsy, sleepy state, your subconscious mind is wide open. Whatever thought or feeling you hold in your mind at that moment sinks into your subconscious with very little resistance. This is the most effective time to impress upon your deeper mind the truth you wish to embody.” – Joseph Murphy
Here’s the exercise, exactly as I’ve practiced it:
Tonight, before you fall asleep, do this:
Lie down comfortably. Close your eyes. Let your body relax until you feel that pleasant heaviness, you’re not quite asleep but you’re not fully alert either. Murphy called this the “state akin to sleep.”
Now choose one short phrase that captures the feeling of what you want to be true. Not a paragraph. Not an essay. Something brief enough that it can loop in your mind effortlessly. “I am at peace.” “I am prosperous.” “I am healthy and strong.” “I am loved.”
Repeat it slowly, feeling the reality of it. Don’t just mouth the words, feel them as true, right now, in this moment. Let the feeling saturate you. If your mind wanders, gently return to the phrase.
Fall asleep in that feeling. That’s it. That’s the whole technique.
What Changed for Me
I was skeptical. Of course I was. But I was also broke, anxious, and tired of my own mental loops, so I had nothing to lose. I chose the phrase “I am prosperous and opportunities come to me easily” and repeated it every night for three weeks.
The shift was subtle at first. I noticed I was less anxious during the day. I stopped catastrophizing about money. I started noticing possibilities I would have dismissed before, a freelance opportunity here, a conversation that opened a door there. Within two months, my income had nearly doubled. Not because I’d worked twice as hard, but because I’d stopped unconsciously blocking the very things I wanted.
Murphy would have said: I’d changed what I was thinking in my heart, and so I changed what I was.
The Uncomfortable Implication
There’s something about Proverbs 23:7 that we’d rather not face. If “as a man thinketh in his heart, so is he,” then every condition of my life is, to some degree, a reflection of my deep beliefs. That includes the conditions I don’t like.
Murphy didn’t shy away from this. He acknowledged it can feel harsh when you first encounter the idea. But he also pointed out that it’s actually the most liberating truth available to us. Because if your outer world is a mirror of your inner beliefs, then you don’t need to manipulate external circumstances. You don’t need to beg, scheme, or struggle. You need to change the belief, and the outer world will rearrange itself accordingly.
That’s the promise encoded in seven ancient words. Not wishful thinking. Not magical thinking. A precise, testable instruction: change what you hold as true in your subconscious, and you change your life.
A Truth That Keeps Proving Itself
I’ve been working with Murphy’s interpretation of this verse for years now, and it hasn’t let me down. Not because it’s magic. But because it’s mechanics. The subconscious mind doesn’t know the difference between “real” and vividly imagined. When you impress a new belief upon it with feeling and repetition, it accepts it as fact and goes to work expressing it in your life.
The writer of Proverbs knew this. Joseph Murphy spent his life teaching it. And now you’ve got the same instruction that’s been hiding in plain sight in one of the most quoted (and least understood) verses in the Bible.
What are you thinking in your heart tonight? Because according to this ancient law, that’s exactly what you’re becoming.
