The Monday and Tuesday before Ash Wednesday known as Shrovetide, has been a tradition among Catholics since the middle Ages. The term is derived from the Middle English word, “Shrive” meaning “to confess”. Shrovetide was also a time of “spring cleaning” consequently just as we might clean our houses in preparation of an occasion, we should also clean our souls by making a good Confession before the beginning of Lent, so as to enter this liturgical season in a spiritually clean state.
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Shrovetide Battle of Carnivale and Lent by Pieter Brueghel the Younger
Shrovetide Revellers by Frans Hals