6) The Triduum is the period of three days beginning with the Holy Thursday liturgy of the Mass of the Lord’s Supper, including Good Friday and the Easter Vigil and ending with Solemn Vespers on Easter Sunday evening. It is also referred to as the Easter Triduum, Holy Triduum, or Paschal Triduum. It is the high point of the liturgical year for the Church. These are not historical events. Rather, they celebrate not what once happened to Jesus but rather what is now happening to us as we become a part of this Easter mystery.