To fully listen to someone is to truly enter into the flow. By shutting off your own internal chatter and focusing solely on what the other person is saying, you enter into a sort of meditation. I find it helpful to visualize what they are describing. If you are not listening and still have your own internal dialogue going on simultaneously, you are not in the flow of energy/communication. You are caught up in your mind and your thoughts. They are sending energy to you, but instead of absorbing what they are communicating to you and sending your energy back to them, their energy seems to hit a wall and bounces back to them. That is why you can always tell when someone is not truly listening to you, you can feel their energy is not in the flow of conversation.
If you listen and direct all your attention to what they are saying, you create a full circle.
This is where true communication can take place. It is an excellent way to train your mind to quiet down and focus, while also enriching your relationships by being completely present.