On this night before He died, Jesus celebrated His Last Supper with his disciples. He gave Himself to them, and he continues to give Himself to us every time we celebrate Mass. Here we are joined to Him, we share in His love and are set free from sin and the power of death.
Opening Prayer for the Mass of the Last Supper:
O God, who have called us to participate in this most sacred Supper, in which your Only Begotten Son, when about to to hand himself over to death, entrusted to the Church a sacrifice new for all eternity, the banquet of his love, grant, we pray, that we may draw from so great a mystery, the fullness of charity and of life. Through our Lord Jesus Christ, your Son, who lives and reigns with you in the unity of the Holy Spirit, one God, for ever and ever.