In tuning a piano the artist strikes his tuning-fork on a hard
surface and holds it to his ear while at the same time he
strikes the A key on the keyboard. Then he tightens or loosens
the string until the key and the fork correspond. From this he
proceeds to harmonize all the other keys.
For the harmony of human life we have One who furnishes the keynote.
When we tune our life up to His all its chords become consonant.
(1714)