That the Inner State affects the Outer Form is a fact generally acknowledged by men, for it is in strict accordance with the general experience of the race. We know that certain mental states will result in imparting to the countenance certain lines and expressions appropriate thereto; certain peculiarities of carriage and manner, voice and demeanor. The facial characteristics, manner, walk, voice and gestures of the miser will be recognized as entirely different from that of the generous person; those of the coward differ materially from those of the brave man; those of the vain are distinguished from those of the modest. We know that certain mental attitudes will produce the corresponding physical expressions of a smile, a frown, an open hand, a clenched fist, an erect spine or bowed shoulders, respectively. We also know that certain feelings will cause the eye to sparkle or grow dim, the voice to become resonant and positive or to become husky and weak; according to the nature of the feelings.
Prof. Wm. James says: "What kind of emotion of fear would be left if the feeling neither of trembling lips nor of weakened limbs, neither of goose-flesh nor of visceral stirrings, were present, it is quite impossible for me to think. Can one fancy the state of rage and picture no ebullition in the chest, no flushing of the face, no dilation of the nostrils, no clenching of the teeth, no impulse to vigorous action, but in their stead limp muscles, calm breathing, and a placid face?"
Prof. Halleck says: "All the emotions have well-defined muscular expression. Darwin has written an excellent work entitled, The Expression of the Emotions in Man and Animals, to which students must refer for a detailed account of such expression. A very few examples must suffice here. In all the exhilarating emotions, the eyebrows, the eyelids, the nostrils, and the angles of the mouth are raised. In the depressing passions it is the reverse. This general statement conveys so much truth, that a careful observer can read a large part of the history of a human being written in the face. For this reason many phrenologists have wisely turned physiognomists. Grief is expressed by raising the inner ends of the eyebrows, drawing down the corners of the mouth, and transversely wrinkling the middle part of the forehead. In Terra del Fuego, a party of natives conveyed to Darwin the idea that a certain man was low-spirited, by pulling down their cheeks in order to make their faces long. Joy is expressed by drawing backward and upward the corners of the mouth. The upper lip rises and draws the cheeks upward, forming wrinkles under the eyes. The elevation of the upper lip and the nostrils expresses contempt. A skillful observer can frequently tell if one person admires another. In this case the eyebrows are raised, disclosing a brightening eye and a relaxed expression; sometimes a gentle smile plays about the mouth. Blushing is merely the physical expression of certain emotions. We notice the expression of emotion more in the countenance, because the effects are there more plainly visible; but the muscles of the entire body, the vital organs, and the viscera, are also vehicles of expression."
These things need but a mention in order to be recognized and admitted. This is the action of the Inner upon the Outer. There is, however, a reaction of the Outer upon the Inner, which while equally true is not so generally recognized nor admitted, and we think it well to briefly call your attention to the same, for the reason that this correspondence between the Inner and the Outer—this reaction as well as the action—must be appreciated in order that the entire meaning and content of the subject of Human Nature may be fully grasped.
That the reaction of the Outer Form upon the Inner State may be understood, we ask you to consider the following opinions of well-known and accepted authorities of the New Psychology, regarding the established fact that a physical expression related to a mental state, will, if voluntarily induced, tend to in turn induce the mental state appropriate to it. We have used these quotations in other books of this series, but will insert them here in this place because they have a direct bearing upon the particular subject before us, and because they furnish direct and unquestioned authority for the statements just made by us. We ask you to consider them carefully, for they express a most important truth.
Prof. Halleck says: "By inducing an expression we can often cause its allied emotion.... Actors have frequently testified to the fact that emotion will arise if they go through the appropriate muscular movements. In talking to a character on the stage, if they clench the fist and frown, they often find themselves becoming really angry; if they start with counterfeit laughter, they find themselves growing cheerful. A German professor says that he cannot walk with a schoolgirl's mincing step and air without feeling frivolous."
Prof. Wm. James says: "Whistling to keep up courage is no mere figure of speech. On the other hand, sit all day in a moping posture, sigh, and reply to everything with a dismal voice, and your melancholy lingers. If we wish to conquer undesirable emotional tendencies in ourselves, we must assiduously, and in the first instance coldbloodedly, go through the outward movements of those contrary dispositions which we wish to cultivate. Smooth the brow, brighten the eye, contract the dorsal rather than the ventral aspect of the frame, and speak in a major key, pass the genial compliment, and your heart must indeed be frigid if it does not gradually thaw."
Dr. Wood Hutchinson, says: "To what extent muscular contractions condition emotions, as Prof. James has suggested, may be easily tested by a quaint and simple little experiment upon a group of the smallest voluntary muscles of the body, those that move the eyeball. Choose some time when you are sitting quietly in your room, free from all disturbing influences. Then stand up, and assuming an easy position, cast the eyes upward and hold them in that position for thirty seconds. Instantly and involuntarily you will be conscious of a tendency toward reverential, devotional, contemplative ideas and thoughts. Then turn the eyes sideways, glancing directly to the right or to the left, through half-closed lids. Within thirty seconds images of suspicion, of uneasiness, or of dislike will rise unbidden to the mind. Turn the eyes on one side and slightly downward, and suggestions of jealousy or coquetry will be apt to spring unbidden. Direct your gaze downward toward the floor, and you are likely to go off into a fit of reverie or abstraction."
Prof. Maudsley says: "The specific muscular action is not merely an exponent of passion, but truly an essential part of it. If we try while the features are fixed in the expression of one passion to call up in the mind a different one, we shall find it impossible to do so."
We state the fact of the reaction of the Outer upon the Inner, with its supporting quotations from the authorities, not for the purpose of instructing our readers in the art of training the emotions by means of the physical, for while this subject is highly important, it forms no part of the particular subject under our present consideration—but that the student may realize the close relationship existing between the Inner State and the Outer Form. These two elements or phases, in their constant action and reaction, manifest the phenomena of Human Nature, and a knowledge of each, and both give to us the key which will open for us the door of the understanding of Human Nature.