I’m sure it has happened to you many times. You hear a song on the radio, and you say to yourself, “What a ridiculous song.” Later that day, you hear the same song again. The following day, you hear that song a few more times. As the song climbs the charts, you can’t get away from it. You hear it several times each day for a week. Then something incredible happens. You’re sitting at home and all of a sudden, you start to hum or sing that silly song! If, at that very moment, I were to ask you what you think of the song, you’d tell me, “It’s horrible.” Then why on earth are you singing it? The
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