Eye of Horus and to ward off evil. Ancient Egyptian and Middle-Eastern sailors would frequently paint the symbol on the bow of their vessel to ensure safe sea travel. Horus was the ancient Egyptian sky god who was usually depicted as a falcon, most likely a lanner or peregrine falcon. His right eye was associated with the sun god, Ra. The eye symbol represents the marking around the eye of the falcon, including the "teardrop" marking sometimes found below the eye. The mirror image, or left eye, sometimes represented the moon and the god Djehuti (Thoth). It was believed by the Greeks and
Horus Heresy (fictional event) ceremony designed to heal Horus of a mortal wound, he is shown a vision of the far future, in which the Emperor is worshiped as a god, and Horus and the other Primarchs are forgotten (The irony being the Heresy is what leads to this future). As the Emperor's primary edict is to stamp out religion in all forms, Horus sees this as the ultimate betrayal. Though another Primarch, his brother Magnus, tries to reach the Emperor by psychic projection and warn him of Horus' treachery during his trance like state, the corruption spreads and prevents Horus from accepting his