Archangel Raphael, whose name means "God has healed" or "the Shining One who heals," is one of the most well-known archangels. He is one of seven angels who attends the throne of God and he is the archangel over all the healing angels. Not only healing but also an angel of science and knowledge. He is the guardian of the Tree of Life in the Garden of Eden. He is also a guide to the underworld. His symbol is the serpent or caduceus (which is also the symbol for healing in western medicine), and he is the patron saint of healers, writers, travelers, and the blind.