Why do Catholics beat their chests?


Why do some some people beat their chests three times when the priest raises the precious body and again when he raises the precious blood?


I don’t know why some people do so at that point in the Mass. Some do it at the three-fold Lamb of God, where God’s mercy is being requested. Others do it at the confiteor, in honor of the old Latin formula of expressing repentance: *“Mea culpa! Mea culpa! Mea maxima culpa!” *(“My fault! My fault! My most grievous fault!”).

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