The Left Eye of Horus: the cattle's black eye.
The right eye of Horus was white, and represented the Sun; and the left eye was black, and represented the Moon. Horus lost his left eye to his evil brother Seth, during a fight to avenge the death of his father. Even though, Seth lost the fight, Horus lost his left eye. The left eye of Horus was torn into pieces by Seth, but was later found by Thoth, who was the God of magic and wisdom. It was Thoth, who reassembled the torn pieces of the left eye and presented it to Horus. The Eye of Horus became a symbol of protection .