human
We know how great waves of feeling spread over a town, city, or county, sweeping people off their feet, and causing them to lose their balance. Great waves of political enthusiasm, or war-spirit or prejudice for or against certain people, or groups of people, sweep over places and cause men to act in a manner which they afterward often regret when they come to themselves and consider the matter in the light of cold reason. People are swayed by demagogues or magnetic leaders who wish to capture their votes or patronage; and they are often led into acts of mob violence, or similar atrocities, by yielding to these waves of contagious thought. On the other hand, we know equally well how great waves of religious emotion spread out over the community upon the occasion of some great 'revival' excitement or religious fervor.