Therefore, keep happy.
Happiness works in the opposite of the vicious circle. It makes for greater happiness. It is self-increasing. Among other reasons, it purifies and invigorates the blood, and this in itself inclines the mind towards further and greater Happiness. It creates the habit of Happiness, the bias towards Happiness. It stores the memory with Happiness, for future use. Prospectively, Happiness must be valued as a great asset.
Therefore, keep happy.
Happiness does not merely aid in removing mental and physical Non-Health, in such forms as depression and fear, “nerves” and their troubles, fatigue, sleeplessness or bad sleep, bad circulation, congestion, and so on. It actually produces positive Health, Well-being, and Fitness, as well as increased Self-Healing and “Preventive” Power.
Therefore, keep happy.
Think of the letter E alone. Happiness tends to Health, in its various aspects:—
Enjoyment of life and of all that life brings us;
Energy—for Health gives a tonic without reaction;
Economy—for, when we are happy, we need neither drugs nor stimulants nor narcotics nor holidays; Happiness saves vast stores of precious power, both physical and mental;
Endurance—what long hours we can work when we are happy;