"Wherever applause breaks out in the liturgy because of some human achievement, it is a sure sign that the essence of liturgy has totally disappeared and been replaced by a kind of religious entertainment. " (Spirit of the Liturgy p. 198)
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If you should encounter applause during Mass in your parish do not panic. Immediately after Mass go out and get a copy of Pope Benedict’s book "The Spirit of the Liturgy" by Ignatius Press and give it to your pastor as a gift. Be sure to highlight the above passage on page 198. Yellow highlighter works really, really well.