A sheep rancher in the remote mountains of Idaho found that his violin was out of tune, and, try as he would, he was unable to make the instrument sound the way it should. A frequent listener to a radio station in California, he wrote the station concerning his problem, asking these good people at a certain hour and minute on a certain day to strike the right note for him. This they did: stopping everything else, silencing all other sounds for a moment, they struck that note. In his shepherd's hut in the distant mountains, the shepherd heard that sound, and from that single note he put his instrument into tune again. Thus is the hour of worship, a special time of being in touch with God. Here we listen for the signal-tone He strikes for our lives, for the pitch He gives by which our hearts may be put in tune.