From an early period of life the child finds the gratification of its instinctive impulses checked or even prevented by the pressure of its environment. Conflict is thus set up between the two forces of instinctive pressure within and social pressure from without. Instinctive impulses which thus come into conflict with the repressing force are not destroyed but are deflected from their natural outlet, are repressed within the mind and ultimately prevented from rising into the conscious field at all except in disguised or symbolic forms. To the adult his childhood seems to have been altogether free from {80} any kind of sexual activity or interest, not because, as is generally supposed, such has never existed, but because it proved incapable of persisting in the conscious field and was suppressed into the unconscious with the increase of the social repressing forces. Similarly impulses experienced in adult life which are for the same reason incompatible with conscious recognition do not become conscious, but live their life in the unconscious, though they may exercise the profoundest influence on the happiness and health of the subject. The work of Freud has been concentrated chiefly upon the one party in these conflicts—the instinctive impulse of which the only considerable one according to him is the sexual. To the other party—the repressing forces—he has given very much less attention, and in them has found apparently much less interest. By most writers of his school also they seem to be taken very much as a matter of course. When we consider, however, what they can accomplish—how they can take the immensely powerful instinct of sex and mould and deform its prodigious mental energy—it is clear that the repressing forces are no less important than the antagonist with which they contend. It is desirable, perhaps, to discuss a little more closely the nature of mental conflict, and especially first to define the precise meaning of the conception. It may readily be granted that the young child’s mind is wholly egocentric, though the proposition is not without a certain element of assumption which it is not wise altogether to ignore. He experiences certain desires and impulses which he assumes with the blandest unconsciousness of any other desires but his own are there to be gratified. The failure to gratify such an impulse may come about in several ways, not all of which are equally significant in {81} establishing mental conflict. The gratification may be physically impossible. Here there is no basis for internal conflict. The resistance is wholly external; the whole child still desires its pleasure and its whole resources, mental and physical, are directed to gain the object. Mere failure may be painful and may lead to an outburst of rage which possibly even discharges some of the mental energy of the wish, but the situation psychically is simple and the incident tends of itself to go no farther.