This section is from the book "In The Light Of The Spirit", by Christian D. Larson. Also available from Amazon: In the Light of the Spirit.
The truth is, that the moment we transfer the principal place of conscious functioning from the body to the soul, we find that the higher spiritual forces will begin to express themselves, and thereby enlarge, enrich and perfect the entire do main of human existence - physical, mental and spiritual; in other words, wherever you are conscious, there you awaken activity. This is the simple truth that underlies this entire field of study. Therefore, when you are conscious on the spiritual side, you awaken spiritual activity; and when you awaken spiritual activity, you cause the expression of spiritual life and spiritual power, and in fact, the expression of everything that pertains to the wonders of the spiritual world. You have taken conscious possession of that higher, richer life, and have begun to bring forth that life into every part of your entire being. Thus your entire being will be lifted up, perfected, made better and higher, and existence itself, on all planes, more beautiful and more enjoyable.
When we understand this great truth in all its fullness, we will begin to realize its many possibilities, and we must come invariably to the conclusion that if we should actually live for a number of years on the spiritual side of our consciousness, the spiritual expression of everything pertaining to the soul would become so strong that it would be impossible for adverse conditions to ever find place in the body; that is, the body would be so thoroughly filled with the life and the power of the spirit that no adverse condition could ever begin for a moment upon the physical side. This would be only one of the many wonderful things that would happen; and another would be the continuous enlargement of the mind, because the expression of the soul has a tendency to build up, to develop, and to further the growth of every thing that is natural and true in any part of the mental world. All in all, therefore, we would realize perpetual health and physical perfection on the tangible side, and become giants of character, power and talent on the mental side; but such a remarkable realization could not take place unless we lived for a number of years on the spiritual side exclusively, and during every moment of existence.
But there are many who may say that they have tried for some years to function entirely upon the spiritual side, and yet have realized neither physical emancipation nor higher mental attainments - a situation that may appear to contradict the truth of the statement just made; but we must remember that when we face the fact as it is in our own life, and ask ourselves if we have always functioned on the spiritual side during every moment of existence, we must invariably reply, that we have functioned on the spiritual side only at rare moments. We have not made the spiritual side the principal place of conscious activity; and that is the reason we have not gained the results that we think should have followed our efforts in that direction. If we would realize all the fruits of the spirit, we must give every moment to the spirit; and this we can do without interfering with the duties and privileges of the physical side of life.
We can live continually on the spiritual side of consciousness, and at the same time give full justice to everything that may demand our attention on the tangible side. Besides, the more perfectly we live in the spiritual, the more life and power we will give to the body, due to the fact that greater spiritual activity in consciousness will arouse a greater abundance of life; and the more life we have, the more power, the more virility, the more strength and the more harmony we shall have, and the better will be the health both of mind and body.
The first step to be taken in the further understanding of truth, and in the search of the secrets of the kingdom, is to train consciousness to live more and more upon the spiritual side of life; and here we must remember that we cannot understand the mysteries of the kingdom, no matter how much we may study or investigate the subject, until we consciously live in the soul. If we live in the body, or in the mind, we cannot understand the spirit, and the mysteries of the kingdom will continue to be mysterious in every form and manner; but the moment we begin to realize that we are spiritual beings, and begin to live in the soul, so that we actually feel that we are living upon the spiritual side, we become conscious of spiritual things; and the moment we become conscious of spiritual things, we gain the power to understand spiritual things. The consciousness of the spiritual must come first; that is, we must actually be in the spiritual world before we can study the spiritual world; and therefore we must live in the soul, and consciously function in the soul, before we can proceed further in the search of truth. Having taken this first step, we will not only gain immensely, both physically and mentally, but we will also have entered consciously the real light of the spiritual world; and when we have entered that light, we shall be able to see clearly how to proceed farther, - how to apply the other side of science to all the mysteries of the kingdom.
 
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