The pontiff’s Aug. 12 general audience focused on the importance of the liturgical year.
By Ishmael Adibuah·Vatican Bureau
VATICAN CITY — Pope Leo XIV has urged Catholics to prioritize attending Sunday Mass, warning that active participation in the Eucharist cannot be replaced by virtual gatherings.
“I urge everyone to seek the best possible conditions so that even those who are unable to take time off work on Sundays may take part in holy Mass,” Leo said.
In his address during his general audience at the Vatican on Aug. 12, the pontiff continued his catechesis on the Second Vatican Council’s constitution on the liturgy, Sacrosanctum Concilium.
As on Aug. 5, his general audience was held inside St. Peter’s Basilica due to Rome’s high summer temperatures.
The liturgical year according to Pius XII and Prosper Guéranger
Leo explained the importance of the liturgical year, referencing his predecessor Venerable Pope Pius XII as well as Servant of God Abbot Prosper Guéranger, OSB, the first abbot of Solesmes Abbey in France and a key figure in the liturgical movement.
It is “important to note that this way of referring to the cycle of Christian feasts as the ‘liturgical year’ became widespread in ecclesiastical language thanks to the work of the Servant of God Abbot Prosper Guéranger,” Leo said in his remarks.
The faithful gathered in St. Peter’s Basilica during Pope Leo XIV’s general audience on Aug. 12, 2026. | Credit: Daniel Ibáñez/EWTN News
The pope also stressed that the liturgical year is not merely a remembrance of past events but, as Pius XII wrote in his encyclical Mediator Dei, “Christ himself, who is ever living in his Church.”
“The liturgical year should thus be understood as a constant renewal of the work of salvation which Christ accomplishes in history,” the pope said. “As she journeys through this temporal cycle, the Church remains in contact with the Lord’s redemptive action, so that all the faithful may be filled with his grace.”
The importance of Sunday Mass
Leo also explained that the Church has always regarded Sunday as a weekly celebration of Christ’s resurrection: the “dies Domini” (“the Lord’s day”).
He urged Catholics to attend Sunday Mass and warned against using virtual gatherings to substitute for in-person attendance.
“To sanctify Sunday, it is essential to celebrate the Eucharist,” Leo said. “This
assembly cannot be substituted by a solely virtual presence, nor can it be reduced to a merely passive gathering.”
“The liturgical assembly is in fact fulfilled through the active participation of brothers and sisters,” Leo added.