Clairvoyance, often called "clear seeing" or "second sight," refers to the purported ability to perceive information about an object, person, location, or event through extrasensory means, such as without the use of the recognized sensory channels. It involves receiving visual impressions, images, or symbols that provide insight or knowledge that is not gained through normal perception. Clairvoyance is one of the most commonly discussed forms of extrasensory perception (ESP) and is often associated with psychic abilities, intuition, and spiritual experiences.