The dictionaries define the word aura as: "Any subtle, invisible emanation or exhalation." The English authorities, as a rule, attribute the origin of the word to a Latin term meaning "air," but the Hindu authorities insist that it had its origin in the Sanscrit root Ar, meaning the spoke of a wheel, the significance being perceived when we remember the fact that the human aura radiates from the body of the individual in a manner similar to the radiation of the spokes of a wheel from the hub thereof. The Sanscrit origin of the term is the one preferred by occultists, although it will be seen that the idea of an aerial emanation, indicated by the Latin root, is not foreign to the real significance of the term.

Be the real origin of the term what it may, the idea of the human aura is one upon which all occultists are in full agreement and harmony, and the mention of which is found in all works upon the general subject of occultism. So we shall begin by a consideration of the main conception thereof, as held by all advanced occultists, ancient and modern, omitting little points of theoretical variance between the different schools.

Briefly, then, the human aura may be described as a fine, ethereal radiation or emanation surrounding each and every living human being. It extends from two to three feet, in all directions, from the body. It assumes an oval shape - a great egg-shaped nebula surrounding the body on all sides for a distance of two or three feet. This aura is sometimes referred to, in ordinary terms, as the "psychic atmosphere" of a person, or as his "magnetic atmosphere."

This atmosphere or aura is apparent to a large percentage of persons in the sense of the psychic awareness generally called "feeling," though the term is not a clear one. The majority of persons are more or less aware of that subtle something about the personality of others, which can be sensed or felt in a clear though unusual way when the other persons are near by, even though they may be out of the range of the vision. Being outside of the ordinary range of the five senses, we are apt to feel that there is something queer or uncanny about these feelings of projected personality. But every person, deep in his heart, knows them to be realities and admits their effect upon his impressions regarding the persons from whom they emanate. Even small children, infants even, perceive this influence, and respond to it in the matter of likes and dislikes.