The Mass of the Lord’s Supper, held during the evening of Holy Thursday, commemorates the institution of the Eucharist as the true Body and Blood of Jesus Christ and the institution of the priesthood.

The Mass of the Lord’s Supper, held during the evening of Holy Thursday, commemorates the institution of the Eucharist as the true Body and Blood of Jesus Christ and the institution of the priesthood.
The sacred Easter Triduum — which marks the end of the Lenten season and leads to the Mass of the Resurrection of the Lord at the Easter Vigil — begins with the Mass of the Lord’s Supper. Held during the evening of Holy Thursday, the Mass of the Lord’s Supper is regarded as one of the most important Catholic liturgies of the year.