Clairvoyance can get confusing, because there are different forms of clairvoyance. The term clairvoyance is a loose term covering all the different forms of telepathy in that vast field of psychic phenomena. The word ‘claivoyance’ is a very loose way of describing the ‘different phases of psychic phenomena that differ from one another.
‘Clairvoyance’ has conflicting definitions and usages; there are widely different meanings to this term. However, in the glossary of the Society for Physical Research, the term ‘clairvoyance’ is defined as: “the faculty or act of perceiving, as though visually, with some coincidental truth, some distant scene; it is used sometimes, but hardly properly, for transcendental vision, or the perception of beings regarded as being on another plane of existence”. “Clairvoyance is not mind reading, but rather a faculty’, to paraphrase Mrs. Henry Sidgwick; a distinguished writer on psychic phenomena.
The phenomena of Clairvoyance is divided into ‘several well distinctive’ classes, or classifications. The principle forms of clairvoyant phenomena:
(1) Simple Clairvoyance: The mere ‘sensing’ of other people’s Auric emanations.
i.e. Auric vibrations, Auric colors, etc.; currents of thoughts vibrations, etc. But does not see events or scenes removed in space or time from the observer.
(2) Clairvoyance in Space: Is the sensing of scenes and events removed in space from the observer; and often, also is able to sense such things even when they are concealed or obscured by intervening material objects.
(3) Clairvoyance in Time: Is the sensing of scenes and events which have had their original place in the past time; or scenes and events which will have their original place in the future.
Methods by which Clairvoyance is usually induced:
(1) Psychometry: Or the method of getting “en rapport” with the Astral Plane, by means of some physical object connected to the person, scene, or thing about which you desire to be informed.
(2) Crystal Gazing, etc.: Or the method of getting “en rapport” with the Astral Plane, by means of gazing into a crystal, or magic mirror, etc.
(3) Clairvoyant Reverie: Or the method of getting “en rapport” with the Astral Plane, by means of Psychic States in which the sights, sounds, and thoughts of the material and Astral Plane are shutout of consciousness.
Taken and adapted from Clairvoyance and Occult Powers, by Swami Pancadasi