The central observance of Holy Thursday is the ritual reenactment of the Last Supper at Mass. This event is celebrated at every Mass, as part of the Liturgy of the Eucharist, but it is specially commemorated on Holy Thursday.
He also establishes the special priesthood for his disciples, which is distinct from the "priesthood of all believers." Christ washed the feet of his Disciples, who would become the first priests.
This establishment of the priesthood reenacted at Mass with the priest washing the feet of several parishioners.
During the Passover meal, Jesus breaks bread and gives it to his Disciples, uttering the words, "This is my body, which is given for you." Subsequently, he passes a cup filled with wine. He then says, "This is my blood..." It is believed those who eat of Christ's flesh and blood shall have eternal life.
What is the Triduum?The summit of the Liturgical Year is the Easter Triduum—from the evening of Holy Thursday to the evening of Easter Sunday. Though chronologically three days, they are liturgically one day unfolding for us the unity of Christ’s Paschal Mystery. The single celebration of the Triduum marks the end of the Lenten season, and leads to the Mass of the Resurrection of the Lord at the Easter Vigil.
The liturgical celebrations that take place during the Triduum are:
Mass of the Lord’s Supper- Holy Thursday Mass –
March 29th, 7:00 PM
(no 9:15 am Mass| no Reconciliation)
The Passion of the Lord and Veneration of the Cross-
Good Friday, March 30th, 7:00 PM
Blessing of the Easter Foods – Holy Saturday
Saturday, March 31st, 12:00 Noon