Many people ask what is the Triduum.  The Triduum also known as Easter Triduum, Holy Triduum, Paschal Triduum, or The Three Days is the period of three days that begins with the liturgy on the evening of Maundy Thursday (Holy Thursday) and ends with evening prayer on Easter Sunday.  

This night we remember the Lord's Passion.  As Jesus prayed in the Garden of Gethsemane he asked his disciples to stay awake and pray with him.  Receive the Lord's invitation.  The Holy Eucharist will be enshrined in the Altar of Repose until 11pm.