In Isaiah we read, "They that wait upon the Lord shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary; and they shall walk, and not faint." Mary Baker Eddy says in "Science and Health with Key to the Scriptures" (p. 218), "The meaning of that passage is not perverted by applying it literally to moments of fatigue," and she further says, "When we wake to the truth of being, all disease, pain, weakness, weariness, sorrow, sin, death, will be unknown." Christian Scientists have learned that it is possible for a human being to prevent or remove the sense of fatigue by intelligent and scientific understanding of what is meant by waiting upon the Lord.
All fatigue, whether supposed by human thought to be mental or physical, is based upon a misconception of the true nature of man and of his real activity. The misconceptions which lead to fatigue are commonly thought and talked. With some people it is so constantly present as to be a continual hindrance to desirable work and not infrequently a source of constant suffering. Fatigue originates in the belief that man is a person working separately from God, that he is largely a material being, provided with a limited store of energy which will maintain only a limited amount of activity without replenishment, and that man's life must end in a gradual diminution of his powers and finally in death. The usual remedy prescribed for fatigue is rest, it being assumed that the mind and body will recuperate if the fatiguing activity ceases; and in our present state of thought and existence some rest is a normal means of recuperation. Yet many sufferers from chronic fatigue have found that rest alone, even for very long periods, does not restore the power to work easily and happily. This is particularly the case with fatigue arising from intellectual or other mental labors.
The scientific and efficacious remedy for fatigue is to remove from thought the various misconceptions which constitute this evil, and on which it is based. One of the most important is the belief that man is separated from God. In reality, man is the spontaneous manifestation of the perpetual, joyful, majestic, and unwearied activity of divine Mind. Man does not have to draw on stores of energy belonging to a limited self; rather, he needs to remember that it is not he but God Himself who is responsible for all work and activity of a desirable kind. God is the only worker, and His work cannot be hindered by any false claim of fatigue. It would be absurd to suppose that infinite Mind, the creator and sustainer of the spiritual universe, could possibly feel fatigue; neither then does man, who is "but the humble servant of the restful Mind" (Science and Health, p. 119), feel fatigue, nor can he require or even indulge in periods of inactivity.
