Bronze Flaming Sacred Heart Pendant with Thorns. Within the Catholic faith, the sacred heart is a medieval symbol of Christ's sacrifice. It signifies the redeeming love of God as the source of illumination and happiness. This radiant design is romantic and fierce with beautiful detailing on the thorns and rays of light. Wear it close to your own heart as a comforting reminder of faith. Our bronze is a high-quality Italian alloy of copper and tin that contains an anti-tarnish compound which delays, but does not eliminate, eventual oxidation.