Palm Sunday has shown us the Passion of Our Lord according to St. Matthew. On Monday, St. John 12:1-9 is the Gospel. On Tuesday, we hear the Passion according to St. Mark. Wednesday presents the Passion according to St. Luke.
Holy Thursday begins with the Chrism Mass, wherein the Oils to be used during the coming year are blessed and consecrated. The evening Mass in Cena Domini celebrates the institution of the Sacrament of the Lord's Supper. At this Mass, during the Gloria in Excelsis, bells are rung. They will not be heard again until they are rung again during the Gloria in Excelsis in the first Mass of Easter.
It is also customary that the Mass of the Lord's Supper, and after the Good Friday services, the benediction is not given. The Church has always considered the Triduum to be one, uninterrupted Service culminating in the Mass of Easter.
The Paschal Privilege now applies during the Octave of Easter. It has been the custom of the Church that, during the Easter Octave, all remain standing during the prayers and the Consecration in honor of the Resurrection.
May the God and Father of Our Lord Jesus Christ enlighten your hearts during this most Holy Week, and may our Resurrected Lord Jesus Christ grant you the fullness of the blessings of His Resurrection, that you are comforted by and assured of the saving merits of His Sacrifice which has assured your eternal salvation.
Behold the wood of the cross, on which hung the salvation of the world. O come, let us adore Him.