Theology, as taught in the Sunday School, treats the subject somewhat after this fashion: "All mortals are assailed by the powers of Good and Evil; the vehicle of the Divine Will is 'Conscience,' the voice of conscience is the voice of God within us. Beware of the World, the Flesh and the Devil; the Devil calls to his victims in the guise of the flesh." This idea is exploited for all it is worth in conjunction with the doctrine of original sin: the stock device of priestcraft to enhance the value of its own ministrations and sacraments. The spiritual teacher will usually "bring the lesson home" by a vivid description of the habits and idiosyncrasies of a Mephistophelian Devil with a particular liability to appropriate the "laws of our lower nature" for the sole purpose of baulking his equally anthropomorphic antagonist, the God of Jews and Christians, whose voice may be recognized in the pangs of remorse and self-debasement. A child subjected to this form of instruction during the most impressionable period of its existence is usually left for the remainder of its life with a vague distrust of nature, a proportionate reverence for the _super_-natural, and an impression that asceticism is the highest attainable virtue, together with a totally false appreciation of mental phenomena and the real value of self-control. Every man should learn to know himself and seek the origin of his impulses. History is full of examples of men and women who believed themselves attended by guardian angels or familiar spirits who prompted their actions and gave them advice; Socrates was constantly attended by his _daimones_, and Joan of Arc used to hear "spirit voices." These and similar cases were evidence of the predominance of the subjective over the objective mind. In a normally balanced mind the _objective_ is in control; in the reverse process the objective mind is dormant and the subjective dominates the throne of reason. This is the case in dreams, trance, hypnosis and cerebral diseases. It is also the case, in greater or lesser degree, whenever the brain is stunned or is said to be "unbalanced" as the result of great emotional excitement or shock. It is then that impulse and instinct take the place of, or inhibit, rational thought. Impulses emanate from the subjective mind, and may result from the inherent nature and real character of the individual; or they may reflect the autosuggestions of the individual, or his bodily desires (this may be termed reflex-suggestion), or the suggestions of others; or, again, the latter, acting upon the subjective mind, may awaken related tendencies or inclinations and result in new complex impulses. Extreme cases of subjective control result in madness; the false premises conveyed by the disordered cerebral organs must result in deductions by the subjective mind of equal abnormality. Control by the subjective mind nearly always produces in the subject either a feeling