The sun expresses, the moon responds; the voice expresses, the ear responds. All the dual aspects in life, such as male and female, show these two aspects. There is not a single thought, speech, action, or event that takes place without the activity of these two; all happiness and success are in their harmony and every fall and failure are in the lack of it. The birth of every thing and being is caused by the meeting of their glance, and death and destruction are the result of their conflict, when either merges into the other and both lose their power.