and strength of body and mind. Joy rouses the spirit; one dances,
laughs, sings, shouts; or the more quiet type of person takes up work
with zeal and renewed energy. Hope brings with it an eagerness for the
battle, a zest for work. The glow of pride that comes with praise is a
stimulus of great power and enlarges the scope of the personality. The
feeling that comes with successful effort, with rewarded effort, is a
new birth of purpose and will. And whatever arouses the fighting spirit,
which in the last analysis is based on anger, achieves the same end.

There are _deënergizing emotions and experiences_ as well, things that
suddenly rob the victim of strength and purpose. Fear of a certain type
is one of these things, as when one's knees knock together, the limbs
become as it were without the control of the will, the heart flutters,
and the voice is hoarse and weak. Fear of sickness, fear of death,
either for one's self or some beloved one, may completely deënergize the
strongest man. Then there is hope deferred, and disappointment, the
frustration of desire and purpose, helplessness before insult and
injustice, blame merited or unmerited, the feeling of failure and
inevitable disaster. There is the unhappy life situation,--the mistaken
marriage, the disillusionment of betrayed love, the dashing of parental
pride. The profoundest deënergization of life may come from a failure of
interest in one's work, a boredom due to monotony, a dropping out of
enthusiasm from the mere failure of new stimuli, as occurs with
loneliness. Any or all of these factors may bring about a neurasthenic,
deënergized state with lowering of the functions of mind and body. We
shall discover how this comes about farther on.

What part does a subconscious personality take in all this and in
further symptoms? Is there a subconsciousness, and what is it?