An uninterrupted continuation of the flow of thought and undivided attention is concentration. It is the result of a well-regulated and controlled thought process. It is accomplished by patient and persistent effort. It is a reward of the highest value. There is no real effort connected with it, but you become so engrossed and interested in your thought that you are conscious of nothing else. Everything else is excluded and your whole consciousness is concentered upon one thought. One moment's complete concentration will go farther toward the mastery of a lesson or solution of your problem than much time spent in idle, disconnected thought. This is a faculty not easily mastered, but when once harnessed and under your control has the greatest constructive power. Exercise for Concentration The following exercises are valuable for prolonged periods of concentration, for developing the visual faculty, and exercising the productive imagination. They will prove of great worth to adults in helping with the construction and definite visualization of their life ideals and business problems. By this process you can easily learn to direct concentrated thought power to the bringing about of your plans and ideals. The Construction of a Home Visualize a forest, into which some lumbermen are coming. See them cutting the trees, sawing them into mill lengths, and donkey engines drawing them to the railroad. They are loaded and hauled to the mill, where they are converted into lumber. See as much detail as you know of the mill processes. The lumber is loaded on cars, shipped to the city, unloaded in a lumber yard, sold and hauled to the spot in the city where a house is to be erected. Follow the erection of the house, watch all the details of its construction until fully completed and the occupants have moved in and established their home. Furnish the house, each room separately, and arrange and cultivate the grounds. This exercise can be continued as far as you desire to prolong the period of concentration. Add all possible detail which will depend upon the amount of knowledge which you possess along these lines. Some parts of the work you will be able to follow in detail, others you may know little about. If there is some other kind of construction that you are more familiar with you can use it in order to make the visualization definite. See to it that your concentration is complete, do not allow your mind to wander. Keep this picture moving so as to hold the complete attention, become interested in the development of each process. Prolong the period of concentration as far as possible. This and the following exercises may be too complicated for your children, according to their age, but some of the simpler ones should be begun as early as eight years. The length and detail increasing with the ability and knowledge.