Before man enters the Path of the Higher Knowledge, he only knows the first of its four stages. It is the one which in ordinary life belongs strictly to the world of the senses. Even in what is called -science, - he has to do only with this first grade of knowledge; for such science only deals with ordinary knowledge more minutely and in a disciplined way. By means of instruments such as the microscope, the telescope, etc., he makes the senses more effective, and discloses to them what they could not otherwise perceive. But he is still on the same plane of knowledge, whether he sees large...