THE SIXTH SENSE.--In the normal state we know and understand the external world through and by the senses. The eye reveals to us the beauties of light, and by its aid the wondrous diversities of nature. The ear brings to the mind the varied sounds, makes oral speech and the sweet harmonies of music possible. The organ of smell sentinels the citadel of health against pestiferous odors, and gives the exquisite enjoyment of perfumes. Ordinarily we rely on these senses as our guides, and so complete is our reliance that we recognize no other avenue to knowledge of the external world; yet at times we find that our minds extend beyond the senses and have capabilities which can not be referred to them. There is an interior perception, which has been called the sixth sense, which, sensitive to impressions from supernal sources, at times rises above all the others. It is through this sense or better, this sensitive state, that we gain an insight into the spiritual nature of man. The senses would lead us away to a gross materialism, for they belong to the animal organization; this sensitiveness leads us in an opposite direction. We find through it another nature overlaid and obscured by the senses and their understanding. This sensitive state is the activity of the spiritual being, in the ratio of its perfection, and is really as normal as the most sensuous condition. The study of this state is the gateway to the understanding of our spiritual being, and the first lesson it teaches is that man is a dual creation; a spirit, an intelligent entity, clothed with, and circumscribed by, a physical body. Only so far as that body interferes with the activity of the spirit, is it of interest to us in the present discussion, which relates entirely to the spirit. This sensitive state is possessed by many, and in many more it may be induced by proper means. It may be laid down as a rule that whatever weakens the physical faculties strengthens this spiritual perception. Thus it is often manifested in disease, after fatigue, or in the negative hours of sleep. Some drugs have the power of inducing it, and mesmerism is the strongest of all artificial means. I use the term _sensitive_ with the meaning here given, and from that meaning shall not deviate. Many who possess this power in a slight degree may not distinguish its perceptions from those of the senses with which they blend, but there are times when the mind passes into an entirely different state from that of its normal activity, that of sensitive receptivity, and what is usually termed intuition is intensified. I propose to study this sensitive state first in connection with that of wakefulness, and then with that of sleep; and from simple thought-reading to the reception of thought from supernal sources.