The old woman at her door in a mean street who refuses to believe that he is not being paid for canvassing, the prosperous and good-natured tradesman who says quite simply,' I expect you find politics rather an expensive amusement,' all seem to stand with their feet upon the ground.

However often he assures himself that the great realities are on his side, and that the busy people round him are concerned only with fleeting appearances, yet the feeling constantly recurs to him that it is he himself who is living in a world of shadows.
This feeling is increased by the fact that a candidate has constantly to repeat the same arguments, and to stimulate in himself the same emotions, and that mere repetition produces a distressing sense of unreality.

The preachers who have to repeat every Sunday the same gospel, find also that 'dry times' alternate with times of exaltation.
Even among the voters the repetition of the same political thoughts is apt to produce weariness.

The main cause of the recurring swing of the electoral pendulum seems to be that opinions which have been held with enthusiasm become after a year or two stale and flat, and that the new opinions seem fresh and vivid.
A treatise is indeed required from some trained psychologist on the conditions under which our nervous system shows itself intolerant of repeated sensations and emotions.

The fact is obviously connected with the purely physiological causes which produce giddiness, tickling, sea-sickness, etc.