釋門歸敬儀 2.40

2.40

二、唱和禮者。雖非慢高，心無淨想，粗正威儀，身心虔敬，起伏相順，片有相扶，其福薄少，非真供養。

The second is called bowing in choral response. Although it is not arrogant or haughty, one's mind lacks pure thoughts; one roughly corrects one's dignified deportment, and body and mind are reverently attentive, rising and prostrating in unison, slightly supporting each other; its merit is slight and meager, not being a true offering.