The Mass is referred to as the Holy Sacrifice because it makes present Jesus Christ’s sacrifice on the cross for the redemption of mankind. Every time people participate in Mass, they are not ‘reenacting’ Christ’s sacrifice, but the Church believes they are truly present at Calvary.
The Mass is celebrated by a priest who is not Christ Himself but acts in the person of Christ. Christ offers himself in the Mass through the liturgy of the Eucharist – the part where bread and wine are consecrated by the priest and become the true body and blood of Jesus.
Mass is a real and privileged encounter with the same Jesus who died on the cross for our sins. It is the highest and deepest way that Catholics can serve, pray and love God. The Mass is described as the ‘’source and summit of Christian life’’ (CCC, 1324). It is true that God is everywhere and so we can talk to him where we please, but nothing compares to his real presence offered to us through the Eucharist at Mass.
It is easy to think that Mass is boring but the sole purpose of it is not entertainment but a sacred form of worship. St Josemaria said: ‘’The Mass is long,’’ you say, and I reply: ‘’Because your love is short.’’
Catholics must attend Mass on Sunday because it is referred to as a Holy Day of Obligation. In these days of the Covid 19 virus, this has become, in some places, impossible. In fact there are very few times in history that churches have remained closed through crises. Maybe it’s a sign of our culture’s lack of reverence for the Mass. There are other days of obligation in the Catholic Church depending on the country. In Australia, the Assumption of Our Lady every year on August 15 is a Holy Day of Obligation.