The Sacred Paschal Triduum consists of the three most solemn days of the liturgical year: Holy Thursday, Good Friday and the Easter Vigil. These holy days celebrate the Paschal Mystery: the Passion, Death and Resurrection of the Lord Jesus Christ, which signifies the triumph of the holy cross and Christ’s victory over sin and death.
There is no Church law that requires attendance for the Triduum, but the faithful are strongly encouraged to make it a top priority to go to church and celebrate the Triduum every year. God gave the Third Commandment, “Keep holy the Sabbath day” (Ex 20:8), which serves as the basis for the Sunday Mass obligation. We should want to go to Mass every Sunday. It is only right to give thanks for the many blessings that we receive over the course of the week, and if we do not nourish our faith regularly, minimally at least once a week, with God’s holy Word and Holy Communion, it is likely that we will become spiritually malnourished and weaker in our faith. Even if there was no obligation, a devout follower of Christ would want to go to Mass every Sunday because it is the right thing to do.
If there were ever three days that Christians should want to go to church, it would be the Triduum. These days rank at the top of the liturgical calendar. They celebrate the most sacred mysteries of our faith, and they ought to be celebrated with the community at liturgy. The three days of the Triduum are the holiest days, and we ought to make the pilgrimage from our homes to church to commemorate a how our Lord Jesus Christ laid down his life for us for our salvation.