Many persons hearing for the first time the statement of psychologists that the imaginative faculties can re-present and re-produce or re-combine only the images which have previously been impressed upon the mind, are apt to object that they can, and frequently do, image things which they have not previously experienced. But can they and do they? Is it not true that what they believe to be original creations of the imagination are merely new combinations of original impressions? For instance, no one ever saw a unicorn, and yet some one originally imagined its form. But a little thought will show that the image of the unicorn is merely that of an animal having the head, neck, and body of a horse, with the beard of a goat, the legs of a buck, the tail of a lion, and a long, tapering horn, spirally twisted, in the middle of the forehead. Each of the several parts of the unicorn exists in some living animal, although the unicorn, composed of all of these parts, is non-existent outside of fable. In the same way the centaur is composed of the body, legs, and tail of the horse and the trunk, head, and arms of a man. The satyr has the head, body, and arms of a man, with the horns, legs, and hoofs of a goat. The mermaid has the head, arms, and trunk of a woman, joined at the waist to the body and tail of a fish. The mythological "devil" has the head, body, and arms of a man, with the horns, legs, and cloven foot of the lower animal, and a peculiar tail composed of that of some animal but tipped with a spearhead. Each of these characteristics is composed of familiar images of experience. The imagination may occupy itself for a lifetime turning out impossible animals of this kind, but every part thereof will be found to correspond to something existent in nature, and experienced by the mind of the person creating the strange beast.
In the same way the imagination may picture a familiar person or thing acting in an unaccustomed manner, the latter having no basis in fact so far as the individual person or thing is concerned, but being warranted by some experience concerning other persons or things. For instance, one may easily form the image of a dog swimming under water like a fish, or climbing a tree like a cat. Likewise, one may form a mental image of a learned, bewigged High Chancellor, or a venerable Archbishop of Canterbury, dressed like a clown, standing on his head, balancing a colored football on his feet, sticking his tongue in his cheek and winking at the audience. In the same way one may imagine a railroad running across a barren desert, or a steep mountain, upon which there is not as yet a rail laid. The bridge across a river may be imaged in the same way. In fact, this is the way that everything is mentally created, constructed, or invented—the old materials being combined in a new way, and arranged in a new fashion. Some psychologists go so far as to say that no mental image of memory is an exact reproduction of the original impression; that there are always changes due to the unconscious operation of the constructive imagination.
The constructive imagination is able to "tear things to pieces" in search for material, as well as to "join things together" in its work of building. The importance of the imagination in all the processes of intellectual thought is great. Without imagination man could not reason or manifest any intellectual process. It is impossible to consider the subject of thought without first regarding the processes of imagination. And yet it is common to hear persons speak of the imagination as if it were a faculty of mere fancy, useless and without place in the practical world of thought.
Developing the Imagination.
The imagination is capable of development and training. The general rules for development of the imagination are practically those which we have stated in connection with the development of the memory. There is the same necessity for plenty of material; for the formation of clear and deep impressions and clear-cut mental images; the same necessity for repeated impression, and the frequent use and employment of the faculty. The practice of visualization, of course, strengthens the power of the imagination as it does that of the memory, the two powers being intimately related. The imagination may be strengthened and trained by deliberately recalling previous impressions and then combining them into new relations. The materials of memory may be torn apart and then re-combined and re-grouped. In the same way one may enter into the feelings and thoughts of other persons by imagining one's self in their place and endeavoring to act out in imagination the life of such persons. In this way one may build up a much fuller and broader conception of human nature and human motives.
In this place, also, we should caution the student against the common waste of the powers of the imagination, and the dissipation of its powers in idle fancies and daydreams. Many persons misuse their imagination in this way and not only weaken its power for effective work but also waste their time and energy. Daydreams are notoriously unfit for the real, practical work of life.
Imagination and Ideals.
And, finally, the student should remember that in the category of the imaginative powers must be placed that phase of mental activity which has so much to do with the making or marring of one's life—the formation of ideals. Our ideals are the patterns after which we shape our life. According to the nature of our ideals is the character of the life we lead.
Our ideals are the supports of that which we call character.
It is a truth, old as the race, and now being perceived most clearly by thinkers, that indeed "as a man thinketh in his heart so is he." The influence of our ideals is perceived to affect not only our character but also our place and degree of success in life. We grow to be that of which we have held ideals. If we create an ideal, either of general qualities or else these qualities as manifested by some person living or dead, and keep that ideal ever before us, we cannot help developing traits and qualities corresponding to those of our ideal. Careful thought will show that character depends greatly upon the nature of our ideals; therefore we see the effect of the imagination in character building.