It is the state of vibrations to which man is tuned that accounts for his soul's note. The different degrees of these notes form a variety of pitch divided by the mystics into three distinct grades. First the grade which produces power and intelligence, and may be pictured as a calm sea. Secondly, the grade of moderate activity which keeps all things in motion, and is a balance between power and weakness which may be pictured as the sea in motion. Thirdly, the grade of intense activity, which destroys everything and causes all weakness and blindness; it may be pictured as a stormy sea.
