Enclosed herewith I hand you Part Four. This part will show you why what you think, or do, or feel, is an indication of what you are.
Thought is energy and energy is power, and it is because all the religions, sciences and philosophies with which the world has heretofore been familiar have been based upon the manifestation of this energy instead of the energy itself, that the world has been limited to effects, while causes have been ignored or misunderstood.
For this reason we have God and the Devil in religion, positive and negative in science, and good and bad in philosophy.
The Master Key reverses the process; it is interested only in cause, and the letters received from students tell a marvelous story; they indicate conclusively that students are finding the cause whereby they may secure for themselves health, harmony, abundance, and whatever else may be necessary for their welfare and happiness.
Life is expressive and it is our business to express ourselves harmoniously and constructively. Sorrow, misery, unhappiness, disease and poverty are not necessities and we are constantly eliminating them.
But this process of eliminating consists in rising above and beyond limitation of any kind. He who has strengthened and purified his thought need not concern himself about microbes, and he who has come into an understanding of the law of abundance will go at once to the source of supply.
It is thus that fate, fortune, and destiny will be controlled as readily as a captain controls his ship, or an engineer, his train.