As the gymnast can mistake the purpose of his muscular development, putting it in the place of greater things, regarding it as an end instead of a means,--so can he who is training for a better use of his nervous force. In the latter case, the signs of this error are a slackened circulation, a loathing to activity, and various evanescent sensations of peace and satisfaction which bear no test, vanishing as soon as they are brought to the slightest trial. Unless you take up your work with fresh interest and renewed vigor each time after practice, you may know that all is not as it should be. To avoid all these mistakes, examine the work of each day and let the next improve upon it. If you are in great need of relaxing, take more exercise in the fresh air. If unable to exercise, get your balance by using slow and steady breaths, which push the blood vigorously over its path in the body, and give one, to a degree, the effect of exercise. Do not mistake the disorders which come at first, when turning away from an unnatural and wasteful life of contractions, for the effects of relaxing. Such disorders are no more caused by relaxing than are the disorders which beset a drunkard or an opium-eater, upon refusing to continue in the way of his error, primarily caused by the abandonment of his evil habit, even though the appearance is that he must return to it in order to re-establish his pseudo-equilibrium. One more cause of trouble, especially in working without a guide, is the habit of going through the form of the exercises without really doing them. The tests needed here have been spoken of before. Do not separate your way of practising from your way of living, but separate your life entirely from your practice while practising, trying outside of this time always to accomplish the agreement of the two,--that is, live the economy of force that you are practising. You can be just as gay, just as vivacious, but without the fatiguing after-effects. As you work to gain the ideal equilibrium, if your test comes, do not be staggered nor dismayed. Avoid its increase by at once giving careful consideration to the causes, and dropping them. Keep your life quietly to the form of its usual action, as far as you wisely can. If you have gained even a little appreciation of equilibrium, you will not easily mistake and overdo. When you find yourself becoming bound to the dismal thought of your test and its terrors, free yourself from it every time, by concentrating upon the weight of your body, or the slowness of the slowest breaths you can draw. Keep yourself truly free, and these feelings of discouragement and all other mental distortions will steadily lose power, until for you they are no more. If they last longer than you think they should, persist in every endeavor, knowing that the after-result, in increased capacity to help yourself and others, will be in exact ratio to your power of persistency without succumbing.