During the Triduum, the Church commemorates the mysteries of salvation not only in the manner of a sacrament, but after the manner in which they historically occurred. Thus, on Holy Thursday we commemorate the foot washing, the Last Supper, and the Agony in the Garden. On Good Friday, the Crucifixion and Death of Jesus. At Easter Vigil, the anointing of his sacred body, and his Resurrection on the third day.
Further, we consider the presence of Christ in the Church until the end of time: He is present in the charity of believers (the mandatum, or example of charity, the foot washing); he is present in the priests (whom he ordained at the Last Supper); and he is present in the Blessed Sacrament (which he first consecrated on this night).
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