Thousands of examples might be cited to show that in all the ages the truth has been dimly recognized by men of all civilized races and in all conditions of life. Indeed, it may be safely predicated of every man of intelligence and refinement that he has often felt within himself an intelligence not the result of education, a perception of truth independent of the testimony of his bodily senses. It is natural to suppose that a proposition, the substantial correctness of which has been so widely recognized, must not only possess a solid basis of truth, but must, if clearly understood, possess a veritable significance of the utmost importance to mankind. Hitherto, however, no successful attempt has been made to define clearly the nature of the two elements which constitute the dual mind; nor has the fact been recognized that the two minds possess distinctive characteristics. It is a fact, nevertheless, that the line of demarcation between the two is clearly defined; that their functions are essentially unlike; that each is endowed with separate and distinct attributes and powers; and that each is capable, under certain conditions and limitations, of independent action. For want of a better nomenclature, I shall distinguish the two by designating the one as _objective_, and the other as _subjective_. In doing so the commonly received definitions of the two words will be slightly modified and extended; but inasmuch as they more nearly express my exact meaning than any others that occur to me, I prefer to use them rather than attempt to coin new ones. In general terms the difference between man's two minds may be stated as follows:-- The objective mind takes cognizance of the objective world. Its media of observation are the five physical senses. It is the outgrowth of man's physical necessities. It is his guide in his struggle with his material environment. Its highest function is that of reasoning. The subjective mind takes cognizance of its environment by means independent of the physical senses. It perceives by intuition. It is the seat of the emotions, and the storehouse of memory. It performs its highest functions when the objective senses are in abeyance. In a word, it is that intelligence which makes itself manifest in a hypnotic subject when he is in a state of somnambulism.