Not sure what you mean by intelligence. Heart is a muscle that is pumping blood. It reacts to emotional stress, food, micronutrients and similar, but I cannot think of anything why it should be called "the center of our intelligence".
He may have it slightly mixed up somehow but it can be confusing. According to heartmath.org our hearts think.
Not only does the brain send signals to the heart as an organ, the heart communicates with the brain unlike any other organ in your body. They are saying that our heart has four times as many cells in it that are the type for "thinking: than the brain does. It's a more powerful thinker than our best intellect. Our heart transmits the signals wirelessly somehow and they can pick up heart waves from much further away than they can a brain. (Oddly enough, our gut also has thinking cells in it. Ever have a gut feeling?
Scripture says the heart is wickedly deceitful and it also says that, as a man thinks in his heart, so is he...Picture this, your spirit and your soul are handcuffed together and both live inside your body. The spirit and soul always argue. They have always fought after the fall I think. And the blood pump of our flesh body is not what we're really talking about here.
Can we agree that for every aspect of the flesh life and body that there is a corresponding spiritual part? Like that. SO we arent talking about the blood pump. We are speaking about the unseen spiritual heart.
WHat is the heart? It's wicked and speaks what it holds within itself. Why would we need a heart that can think independantly?
Our spirit = Good guy.
Our soul = Bad guy.
Which one do you feed?
I'm lost at that point. What I've speculated is that our spiritual heart is what is needed to bring spirit and soul together and it takes in everything and is where the spiritual and the material flux together and be able to work. So there we are standing in the middle of the road of our heart and trying to decide do we take a left onto soul rd., or a right on Spirit Ave?!
The soul only lives for the flesh. There's nothing righteous within the flesh. We can see it and it looks nice and it smells good. But it's the flesh, it is written, you shall live by the Spirit. Be led by the spirit. The spirit is in the unseen realm, we can't see it. Live for the Spirit's decisions and ignore your intellect, lean not upon your own understanding...
But how many people will even look the spirits direction? Not when they can see this or that. This whole planet is like a carnival of death where there are many funhouses which only bring death and distraction from the spirit.
It's a simple thing to not rely on your intelligence, reason and logic. It's hard to do, but simple!