Eye of Ra
Ra's enemies are the forces of chaos, which threaten "maat", the cosmic order that he creates. They include both humans who spread disorder and cosmic powers like Apep, the embodiment of chaos, whom Ra and the gods who accompany him in his barque are said to combat every night. The malevolent gaze of Apep's own eye is a potent weapon against Ra, and Ra's eye is one of the few powers that can counteract it. Some unclear passages in the "Coffin Texts" suggest that Apep was thought capable of injuring or stealing the Eye of Ra from its master during the combat. In other texts, the eye's fiery breath assists in Apep's destruction. This apotropaic function of the Eye of Ra is another point of overlap with the Eye of Horus, which was similarly believed to ward off evil.