Raphael is originally an archangel who performs all manner of healing. He is also denoted as one of the 7 Archangels who stand in the presence of God, as well as a ruler of the Cherubim and Archangel classes in the heavenly hierarchy. The Archangel, alongside Zarachiel, also holds dominion over the Second Heaven. Raphael has also been denoted as the angel of science and knowledge. Other titles attributed to Raphael include the angel of prayer, love, joy, light, as well as the guardian of both The Tree of Life and humanity. Raphael is charged to heal the earth and has a special charge of protecting the young, the innocent, and travelers. He is the regent of the sun, Patron of Travelers, Chief of the order of virtues and overseer of the evening winds. He is the angel of prayer, love, joy, providence, healing, light, science, and knowledge. He is associated with Spring and rebirth. Above all, he is the angel of healing. Raphael's name means "God heals." He is also the patron of the blind, of happy meetings, of nurses, of physicians and of travelers. .It was also Raphael who gave Noah, after the flood, a medical book said to have been the famous "The Book of the Angel Raziel". Raphael rules over Mercury, Wednesday and Saturday. He is the governor of the South and the element of Fire. He is often shown carrying a pilgrim's staff.