In another place Bain rightly says, “Our position in the world contains the sources of fear. The vast powers of nature dispose of our lives and happiness with irresistible might and awful aspect. Ages had elapsed ere the knowledge of law and uniformity prevailing among those powers was arrived at by the human intellect. The profound ignorance of the primitive man was the soil wherein his early conceptions and theories sprang up; and the fear inseparable from ignorance gave them their character. The essence of susperstition is expressed by the definition of fear.”

Compayré, in speaking of the fear of the child, says, “In his limited experience of evil, by a natural generalization, he suspects danger everywhere like a sick person whose aching body dreads in advance every motion and every contact. He feels that there is a danger everywhere, behind the things that he cannot understand, because they do not fit in with his experience.

“The observations collected by Romanes in his interesting studies on the intelligence of animals throw much light on this question; they prove that dogs, for instance, do not fear this or that, except as they are ignorant of the cause. A dog was very much terrified one day when he heard a rumbling like thunder produced by throwing apples on the floor of the garret; he seemed to understand the cause of the noise as soon as he was taken to the garret, and became as quiet and happy as ever.

“Another dog had a habit of playing with dry bones. One day Romanes attached a fine thread which could hardly be seen, to one of the bones, and while the dog was playing with it, drew it slowly towards him; the dog recoiled in terror from the bone, which seemed to be moving of its own accord. So skittish horses show fright as long as the cause of the noise that frightens them remains unknown and invisible to them.

“It is the same with the child. When in the presence of all the things around him, of which he has no idea, these sounding objects, these forms, these movements, whose cause he does not divine, he is naturally a prey to vague fears. He is just what we should be, if chance should cast us suddenly into an unexplored country before strange objects and strange beings—suspicious, always on the qui vive, disposed to see imaginary enemies behind every bush, fearing a new danger at every turn in the road.”

Similarly, Sully says, “The timidity of childhood is seen in the readiness with which experience invests objects and places with a fear-exciting aspect, in its tendency to look at all that is unknown as terrifying, and in the difficulty of the educator in controlling these tendencies.”

Sully is right in thinking that education tends greatly to reduce the early intensity of fear. “This it does by substituting knowledge for ignorance, and so undermining that vague terror before the unknown to which the child and the superstitious savage are a prey, an effect aided by the growth of will power and the attitude of self-confidence which this brings with it.” An uncultivated personality with a limited mental horizon, with a narrow range of interests, a personality trained in the fear of mysterious agencies, is a fit subject for obsessions.

In certain types of functional psychosis and neurosis the patient has an inkling of the fear instinct in his dread of objects, or of states of mind, lack of confidence, blushing, expectations of some coming misfortune and some mysterious evil, but he is not aware of the fear instinct as developed in him by the events and training of early childhood. The fears of early childhood are subconscious. At any rate, the patient does not connect them with his present mental affection.

In other types of psychopathic affections the patient is entirely unaware of the whole situation, he is engrossed by the symptoms which he regards as the sum and substance of his trouble; the fear is entirely subconscious. Frights, scares, dread of sickness, instructions associated with fear of the mysterious and unseen, injunctions with fear of punishment or failure in moral standards, enforcement of social customs with dread of failure and degradation,—all go to the cultivation of the fear instinct which in later life becomes manifested as functional psychosis or neurosis.