The eye is considered to be the primary organ of sense perception. It is closely associated with light, the spirit, and the sun. The eye symbolizes spiritual and mental perception and is considered to be the mirror of the soul, the organ of spiritual and mental expression.
The right eye is associated with the activity, the future, and the sun. The left eye is associated with passivity, the past, and the moon. In some cultures and religions (such as Buddhism), a third eye is envisioned in the middle of the forehead, just above the nose, and is considered to be a symbol of inner vision and power.
In magick, heterotopic eyes are those that have been transferred anatomically to various parts of the body, such as the hands, wings, torso, arms, and different parts of the head. These eyes are the equivalent of spiritual sight or clairvoyance.
When the eyes are situated on the hand, it signifies that the individual has great clairvoyant powers. The most widely used eye symbol in magick is that of Horus. In ancient Egypt, the right eye of Horus, the sky god, was his solar eye, and the left eye was his udjat eye, or eye of the moon. The udjat eye symbolizes the power of light and was one of the most sacred and powerful protective amulets in Egyptian magic.
Depending on its employment, and surrounding symbolism, the single eye can represent the forces of good or evil as the single eye of god, or the destructive power of the Cyclops.