Let us start with a hasty look at Man himself. Not to speak of his "Seven Planes of Mind," which belongs to the next visit, we find him a very interesting object. Not only has he a physical body, apparent to our senses, but he has also a finer or "astral body," which he may use (unconsciously, or consciously, when he learns how) for little excursions away from the body, during his lifetime. This Astral Body is composed of Substance just as his denser physical body. The field and range of Substance extends far beyond the powers of ordinary vision, as even the Materialists must admit when they talk of "Radiant Matter," "Etherial Substance," etc. Then he has currents of Fine Force coursing through his nervous system, which may be seen by those possessing "Astral Vision," if the teachings of the Occultists be true. Then he, like the Particle, has an "Aura" or egg-shaped projection of Mind and fine particles of Psychoplasm, which has been thrown off in the process of Thought, and which clusters around him, producing a "Mental Atmosphere," which constantly surrounds him, and makes itself "felt" by those coming in his presence. Those who read these words may remember, readily, the "feeling" they have experienced when coming in contact with certain people--how some radiated an atmosphere of cheerfulness, brightness, etc., while others radiated the very opposite. Some radiate a feeling of energy, activity, etc., while others manifest just the reverse. Many likes and dislikes between people meeting for the first time, arise in this way, each finding in the mental atmosphere of the other, some inharmonious element. These radiations are perceived by others coming into their range. Occultists tell us that the character of a man's thought vibrations may be determined by certain colors, which are visible to those having "Astral Sight." There is nothing so wonderful about this, when it is remembered that the various "colors" of light, comprising the visible colors of the spectrum, ranging from red, on through orange, yellow, green, blue, indigo, and terminating in violet, arise simply from different rates of vibration of the Particles of Substance. And as Thought is produced by Mind causing vibrations in the Psychoplasm, why is not the Astral Colors reasonable? We cannot stop to consider these colors in detail, but may run over the ones corresponding to each marked Emotion of Thought, as reported by the Occult teachings.