ANCHOR This symbol of hope has been found in the art of the catacombs. The flaming heart signifies extreme ardor while the heart encircled with thorns. A Heart on a coat of arms is suggestive of charity and sincerity. If the heart is flaming, it refers to intense, burning desire. The idea is that the physical heart of Jesus is a symbol of his divin. In some Christian paintings it is depicted as a flaming heart shining with divine light.