If you have any difficulty in banishing unpleasant or torturing thoughts, force yourself to read some good, inspiring book—something that will smooth out your wrinkles and put you in a happy mood; something that will make you see the real grandeur and beauty of life; something that will make you feel ashamed of petty meannesses and narrow, uncharitable thoughts.
After a little practise, you will be surprised to see how quickly and completely you can change your whole mental attitude so that you will face life the right way before you fall asleep.
You will be surprised also to find how wonderfully serene, calm, refreshed, and rejuvenated you will be when you wake in the morning, and how much easier it will be to start right, and wear a smile that won't come off during the day, than it was when you went to bed in an ill-humored, worrying or ugly mood, or full of ungenerous, uncharitable thoughts.
Unless you tune your mind to harmony for sleep, there will be a constant strain upon the nervous system. Even if you do manage to go to sleep with a troubled mind, the brain keeps on working and you will wake up exhausted.
We should take special pains to erase the memory of all unfortunate experiences of the day, all domestic business or professional troubles and anxieties, in order to retire in a placid, peaceful, harmonious state of mind; not only because of the necessity of rising refreshed and invigorated in the morning, but because the character and the disposition are affected by the condition of the mind upon falling asleep. Mental discords not only prevent sound sleep but also leave in the blood poisonous waste from the chemical changes which in turn dulls and impairs the brain action.
Many business men suffer so much torture at night that some of them actually dread to retire because of the long, tedious, wakeful hours. Financial troubles are particularly exaggerated at night; and even many optimists suffer more or less from pessimism then.
Business men ought to know how to turn off brain power when they are not using it. They would not think of leaving or closing their factories at night without turning off the machinery power. Why should they then attempt to go to sleep without turning off their mental power? It is infinitely important to one's health to turn off mental power when not actually using it to produce something.
When you get through your regular day's work, why allow your precious energy to dribble away in little worries? Why carry your business home, take it to bed with you, and waste your life forces in ineffective thinking? Why permit a great leakage of mental energy and a waste of life-force? You must learn to shut off mental steam when you quit work.
Many men use up almost as much mental energy in the evening and in a restless night as during their actual work in the day.
Refresh, renew, rejuvenate yourself by play and pleasant recreation. Play as hard as you work; have a jolly good time, and then you will get that refreshing, invigorating sleep which gives an overplus of energy, a buoyancy of spirit which will make you eager to plunge into the next day's work.