In the biblical understanding, our heart is at the center of our being. It’s not a muscle, but a symbol for the very center of our being. Now the beautiful thing about the heart is that the heart is the place where we are most ourselves. It is the very core of our being, the spiritual center of our being. Solitude and silence, for instance, are ways to get to the heart, because the heart is the place where God speaks to us, where we hear the voice that calls us beloved. This is precisely the most intimate place. In the famous story, Elijah was standing in front of the cave. God was not in the storm, God was not in the fire and not in the earthquake, but God was in that soft little voice (see 1 Kings 19: 11–12). That soft little voice … speaks to the heart. Prayer and solitude are ways to listen to the voice that speaks to our heart, in the center of our being. One of the most amazing things is that if you enter deeper and deeper into that place, you not only meet God, but you meet the whole world there.