In two-dimensional art, Hermes Kriophoros transformed into the Christ carrying a lamb and walking among his sheep: "Thus we find philosophers holding scrolls or a Hermes Kriophoros which can be turned into Christ giving the Law (Traditio Legis) and the Good Shepherd respectively".[12] The Good Shepherd is a common motif from the Catacombs of Rome (Gardner, 10, fig 54) and in sarcophagus reliefs, where Christian and pagan symbolism are often combined, making secure identifications difficult. This is defined as syncretism, a blending of images from different cultures and religions.