This is the call of man to man in the name of God, but in nature we find the call of God to man in the Name of God, which is really the call of God to God in the Name of God. It is through the speech or call of God that the universe was made, and one reason that it was created was so that God could use it as His Instrument for His Eternal Music. That our ears are closed is not His fault.
Yet we sense this call in another way, in our appreciation of sunshine, the song of birds, the falling waters, the dashing waves, the feeling of exuberance at springtime, the refreshing atmosphere after a rain, and in many other ways. Truly the Music of God is everywhere, but this artificial life has benumbed our ears. So man must call us to prayer and worship, prayer and worship which are the natural business of the soul.