the.com/third eye

means An inner faculty of insight, intuition, or heightened spiritual awareness, imagined as an unseen eye in the middle of the forehead.

from Rooted in Hindu and Buddhist traditions, where it corresponds to the ajna chakra, a point between the eyebrows linked to inner vision and enlightenment — sometimes pictured literally, as in depictions of Shiva's third eye. The phrase entered English through 19th and 20th-century interest in Theosophy and Eastern philosophy, then spread into New Age and pop-psychology use to mean any flash of intuitive or 'beyond the physical' perception.