The third eye (also called the mind's eye, or inner eye) is a mystical and esoteric concept referring to a speculative invisible eye which provides perception beyond ordinary sight.
In certain dharmic spiritual traditions such as Hinduism, the third eye refers to the ajna, or brow, chakra. The third eye refers to the gate that leads to inner realms and spaces of higher consciousness. In New Age spirituality, the third eye often symbolizes a state of enlightenment or the evocation of mental images having deeply personal spiritual or psychological significance. The third eye is often associated with religious visions, clairvoyance, the ability to observe chakras and auras,precognition, and out-of-body experiences. People who are claimed to have the capacity to utilize their third eyes are sometimes known as seers. In some traditions such as Hinduism, the third eye is said to be located around the middle of the forehead, slightly above the junction of the eyebrows.
In Taoism and many traditional Chinese religious sects such as Chan (a cousin to the Zen school), "third eye training" involves focusing attention on the point between the eyebrows with the eyes closed, and while the body is in various qigong postures. The goal of this training is to allow students to tune into the correct "vibration" of the universe and gain a solid foundation on which to reach more advanced meditation levels. Taoism teaches that the third eye, also called the mind's eye, is situated between the two physical eyes, and expands up to the middle of the forehead when opened. Taoism claims that the third eye is one of the main energy centers of the body located at the sixth chakra, forming a part of the main meridian, the line separating left and right hemispheres of the body. In Taoist alchemical traditions, the third eye is the frontal part of the "Upper Dan Tien" (upper cinnabar field) and is given the evocative name "muddy pellet".