One says, "Keep counting until you fall asleep." Another says, "Watch a flock of sheep jumping over a fence, counting each one as it jumps." A third says, "Watch a bird sailing around in the sky. Keep the mind upon it and watch it as it steadily sails until you are asleep." Someone says, "Repeat the Twenty-third Psalm over and over, the more rhythmic, the better." Another says, "Think of the sky. Keep the mind upon its expanse." Still another, "Think of the Infinite and Eternal Source of the universe." Among all these suggestions we can find some truth. Nearly all of them imply concentration of the mind. If attention can be focused and held at a point, the excited activity of thinking may be stopped and the body consequently brought into a state of acquiescence. They succeed, if they do succeed, because attention is turned from worries to something besides the antagonism, excitements and duties of the day. Another element in the suggestions is their regularity. Watching the sheep jump over a fence and counting one at a time, for example, affects the breathing and all the vital forces of the body. This causes rhythmic co-ordination of all the elements and the unity of this will, of course, bring sleep. The sense of harmony and rhythm and self-control should be gained; all antagonistic, chaotic and exciting thoughts and all worry should be eliminated as far as possible before lying down. When we lie down, we should turn our attention away from the excitements of the world to something calm and reposeful. Accordingly there is nothing better than to repeat some of the exercises of the morning. These stretchings, practiced slowly and rhythmically, will equalize the circulation, the taking of deep breaths, very rhythmically, will tend to restore respiratory action and the other exercises will tend to eliminate constriction from local parts. Observe the necessity once more of harmonious thought and positive emotion, for here again there will be a temptation to dwell upon the failures of the day. It is so hard to forget some unkind word, some failure on our part to grasp a situation at the right time. We can easily remember the wrong word we ourselves spoke and deeply regret our failure to enter into sympathetic touch with someone. In such an excited frame of mind, with the nerves wrought up at the thought of the day's work and with all these discordant pictures thronging into our consciousness, sleep becomes impossible.