In Greek mythology, the night has twin sons, Thanatos (death) and Hypnos (sleep), who carry flaming torches pointing toward the floor, to light a path through the dark. Juan Marín, a Latin American anesthesia pioneer, designed this image to represent anesthesia. He placed a small light between Thanatos and Hypnos indicating the flame of life the anesthesiologist must guard. The upper half of the emblem shows the rising or setting sun of consciousness. The Confederación Latinoamericana de Anestesiología and the Revista Colombiana de Anestesiología have adopted this beautiful emblem, which in the past had been used by the World Federation of Societies of Anaesthesiologists.