To the majority of people, life is a dark room where one is liable to hurt himself by coming into contact with something he cannot see. Their frequent hurts, their disappointments, perplexities, sorrows and pains are caused by sudden contact with principles which they do not see and are therefore not prepared to deal with. But, when the light of wisdom is introduced into the darkened understanding, confusion vanishes, difficulties are dissolved, all things are seen in their true place and proportion and henceforth one walks, open-eyed and unhurt in the clear light of a wise comprehension.