All men and women on earth were created with two eyes. The left eye represents the moon (mind/ego) and the right eye represents the sun (heart/conscience). Both eyes represent the duality of human nature. The sun represents the light in the heart of man, and the moon represents the darkness in the mind of man. When you read in ancient and religious scriptures that the enemy of humanity will surface with only one eye, this simply means that this being will only see through his left eye and neglect the right. And without the light of the right eye, this being will be very dark and evil.