Very few people understand the heart. In truth, your heart is one of the masterpieces of creation. It is a phenomenal instrument. It has the potential to create vibrations and harmonies that are far beyond the beauty of pianos, strings, or flutes. You can hear an instrument, but you feel your heart. And if you think that you feel an instrument, it’s only because it touched your heart. Your heart is an instrument made of extremely subtle energy that few people come to appreciate.

In most human beings, the heart does its work unattended. Even though its behavior governs the course of our lives, it is not understood. If at any given point in time the heart happens to open, we fall in love. If at any given point in time it happens to close, the love stops. If the heart happens to hurt, we get angry, and if we stop feeling it altogether, we get empty. All of these different things happen because the heart goes through changes. These energy shifts and variations that take place in the heart run your life. You are so identified with them that you use the words “I” and “me” when you refer to what’s going on in your heart. But in truth, you are not your heart. You are the experiencer of your heart.

The heart is actually very simple to understand. It is an energy center, a chakra. It is one of the most beautiful and powerful energy centers, and one that affects our daily lives. As we have seen, an energy center is an area within your being through which your energy focuses, distributes, and flows. This energy flow has been referred to as Shakti, Spirit, and Chi, and it plays an intricate part in your life. You feel the heart’s energy all the time. Think about what it is like to feel love in your heart. Think about what it is like to feel inspiration and enthusiasm pour from your heart. Think about what it is like to feel energy well up in your heart making you confident and strong. All of this happens because the heart is an energy center.

The heart controls the energy flow by opening and closing. This means that the heart, like a valve, can either allow the flow of energy to pass through, or it can restrict the flow of energy from passing through. If you observe your heart, you know very well what it feels like when it’s open and what it feels like when it’s closed. In fact, the state of your heart changes quite regularly. You can be experiencing great feelings of love while in the presence of someone, until they say something you don’t like. Then your heart closes toward them, and you simply don’t feel the love anymore. We have all experienced this, but what exactly is causing it? Since we all have to experience the heart, we might as well understand what’s going on in there.

We begin this analysis by asking a fundamental question: What is it about the structure of the heart center that permits it to close? What you will find is that the heart closes because it becomes blocked by stored, unfinished energy patterns from your past. You need only examine your everyday experiences to understand this. As events take place in this world, they come in through your senses and have an impact on your inner state of being. The experience of these events may bring up some fear, some anxiety, or maybe some love. Different experiences happen inside because of how you take in and digest the world as it passes through you. When you take in the world through your senses, it is actually energy that is coming into your being. Form itself does not come into your mind or heart. Form stays outside, but it is processed by your senses into energy patterns that your mind and heart can receive and experience. Science explains this sensory process to us. Your eyes are not really windows through which you look out into the world. Your eyes are cameras that send electronic images of the world into you. This is true of all your senses. They sense the world, convert the information, transmit the data through electrical nerve impulses, and then the impressions get rendered in your mind. Your senses are, indeed, electronic sensing devices. But if the energy patterns that are coming into your psyche create disturbance, you will resist them and not allow them to pass through you. When you do this, the energy patterns actually get blocked within you.

Excerpt from The Untethered Soul: The Journey Beyond Yourself by Michael Singer