This section is from the book "Concentration", by Christian D. Larson. Also available from Amazon: Concentration And The Power Back Of Suggestion.
IN the science and art of concentration, it is the deeper forces and the finer energies of mind and personality with which we deal directly; and therefore we increase the power of concentration as we acquire the ability to take up or control those forces at will, and according to our purpose or desire. To accomplish this, we must gain interior hold of those forces, because they do not respond to any action of mind or will that is merely superficial. And here we find another reason why it is only the few who really can concentrate; it is only the few who think deeply and who cause the actions of the mind to work among the powerful undercurrents of life, thought and mentality; but any one can acquire this power; and the first step towards that end is to gain this interior hold of the finer energies of the mind.
When we can take hold of the forces of the mental world, and direct or sway those forces in any way desired, just as we sway or extend the arm in any mode or direction desired - when we can do this, then we are beginning to acquire the power of real concentration. This inner mastery of the forces and energies of the mind, is a purely subjective process, and is developed only as we learn to act consciously and positivelyin what we may term the "inner field" of thought, consciousness and mind action. And although there are many who can and do act, to some extent, in this inner field, the majority can acquire this power only through extensive practice.
The value of this power, even aside from that of concentration, is very great, especially in connection with the creation of effective and brilliant ideas; for the fact is, that it is only in this inner field of mind and thought that brilliant ideas are created; and besides, every mental creative process of genuine worth depends directly upon the action of these finer energies. If we would develop the real power of concentration, therefore, and also master the art of creating brilliant ideas, we must think and act in the consciousness of the "inner field" of mentality, and gain, more and more, this interior hold upon the forces of mind and personality.
To advance in this direction, we should endeavor frequently to take up and apply the deeper forces of the mental system; that is, to take positive hold of those forces with mind and will, directing them first upon one sphere in the mental world, then upon some other sphere; to move those forces to and fro as we may desire; to cause them to move in circles one moment and in straight lines, either towards the depths or the heights of the mental world, the next moment; to gather them in large groups or in small groups according to desire; to focalize them all upon any subject or idea we have in mind, and to see how long we can continue such focalization without losing interest in the subject or becoming oblivious to our surroundings. And here we should remember that the moment we lose interest in the subject before us, that moment we cease to concentrate; and also, that the moment we become oblivious to our surroundings, that moment we cease to concentrate. Concentration involves, on the one hand, undivided attention to the subject or object before us; and, on the other hand, complete wide-awakeness to everything going on among our surroundings. The moment we become oblivious to our surroundings, the real power of concentration is lost for the time being; it is very important therefore that we continue to be wide-awake, both to the objective and to the subjective; in fact, in as wide and deep and large a sphere as possible.
To gain this interior hold upon the deeper forces of the mind, it is continuous practice that will give the power desired; and every imaginable method should be employed, because the more ways through which we can handle, sway or manipulate those forces, the greater will become our conscious hold upon those forces; and when this conscious hold becomes remarkable, then we can apply those forces anywhere at any time, and with full capacity and power. In other words, we shall be able to concentrate perfectly, and turn on the full current of all the talent, energy and power we possess.
An excellent practice is to turn attention frequently upon the great within, concentrating the deeper forces of the mind upon the vast and marvelous possibilities that exist in the fathomless depths of the mental world. This practice will not only aid the mind remarkably in gaining this interior hold upon the finer energies, but will also awaken latent forces and new talents; and will invariably arouse increased capacity and power in every faculty and talent we may be using now.
When we find that the faculties and talents we employ do not possess suf-ficient force and capacity to make that work a success, it is most important that we take up the above practice and do so with determination and enthusiasm. We will soon experience most marked improvement; the mental engine will have more "steam," and we shall be able to speed on with twice and thrice the usual cargo of plans, propositions and achievements. Furthermore, this practice will enlarge immensely the field for concentration; and here it is important to remember that the greater the scope and range of the mental world, of which we are actively conscious, the greater becomes the power of concentration. Every faculty or power in the mind gains exceptional advantages when given more and more to work with; and the practice of concentrating frequently upon the great within will give every faculty more to work with, besides giving the mind, as a whole, an ever-increasing world for attainment and achievement.
 
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