The art of relaxation

From "Your Power As A Woman", page 183: "As we all know, relaxation - the key to physical, mental, and spiritual peace - is of prime importance in today's complex world. This book gives you successful rules for overcoming nervous exhaustion, sleeplessness, excessive worry, muscular fatigue, irritability, emotional strain, over-stimulation, irrational fear, lack of energy, tension headaches, and many other personal difficulties resulting from the stresses and strains of modern living.