It is not to be supposed that an All-wise Providence has placed within the human frame a separate entity, endowed with such wonderful powers as we have seen that it possesses, and hedged about by the limitations with which we know it to be environed, without so ordaining its relations with man's objective intelligence as to render it of practical value to the human race in its struggle with its physical environment. It might at first glance seem incongruous to suppose that the subjective mind could be at once the storehouse of memory and the source of inspiration, limited as to its methods and powers of reasoning, and at the same time subject to the imperial control of the objective mind. A moment's reflection, however, will show that in the very nature of things it must necessarily be true. "A house divided against itself cannot stand." There must be a controlling power in every well-regulated household, municipality, nation, or organism. There is a positive and a negative force in the greatest physical power known to mankind. There is a male and a female element in every race and order of created organisms; and those philosophers who hold that there appertain to every man a male and a female element have dimly recognized the duality of man's mental organization. Why it is that the objective mind has been invested with the controlling influence, limited as are its resources and feeble as are its powers, is a question upon which it would be idle to speculate. It profits us only to know the fact and to study its practical significance, without wasting our energies in seeking to know the ultimate cause. We may rest assured that in this, as in all other laws of Nature, we shall find infinite wisdom. If any one doubts the wisdom of investing the objective mind with the controlling power in the dual organization, let him visit a madhouse. There he will see all shades and degrees of subjective control. There he will see men whose objective minds have completely abdicated the throne, and whose subjective minds are in pursuit of one idea,--controlled by one dominant impression, which subordinates all others. These are the monomaniacs,--the victims of false suggestions. These suggestions may be given from without, in a thousand different ways which will be readily recognized by the student of insanity, or by auto-suggestion. Long and intense concentration of mind upon one subject, and inordinate egotism, will be readily recognized as striking illustrations of the power of auto-suggestion as a factor in monomania. The maniac is one whose objective mind is disorganized by disease of its organ, the brain; the result being distortion of objective impressions, and consequent false suggestions to the subjective mind.