The fourth chakra, the Heart Chakra, is located in the center of the chest and it is associated with the heart, lungs, and circulation. It is the connector between the lower chakras and the upper chakras, and it is through this center that your healing and evolution is possible. The Heart Chakra is the energy center that emanates feelings of joy, love, compassion, and healing, as well as feelings of sadness, sorrow, and resentment.