Pope Francis will celebrate a Mass of Our Lord’s Resurrection in St. Peter’s Square in Vatican City at 10:15 a.m. local time Easter Sunday, April 5. The Mass and the subsequent Urbi et Orbi (to the City and to the World) blessing will attended by thousands of devout Roman Catholics and will be livestreamed by the Vatican across the world.

The special Easter Mass commemorates the day in Christian faith when Jesus of Nazareth rose from the dead and ascended into Heaven. It is the culmination of the Christian Holy Week, which is marked by numerous holy days and celebrations. It also marks the end of the Lenten prayer season. According to religious tradition, the resurrection occurred three days after Christ's crucifixion and burial, marked as Good Friday on the Christian calendar. Holy Week is observed by most Christian denominations, including the Orthodox Churches, Roman Catholic Church and most Protestant Churches.

Video of the Easter Mass at the Vatican is available below, via the Vatican’s official YouTube channel. Below that is the live stream of the Urbi et Orbi blessing, which is given by the Pope on Easter and Christmas, the two most holy days in Roman Catholicism. You can also watch all the Holy Week Masses on the Vatican YouTube channel. Vatican Radio will also broadcast the special Masses. For more information on satellite and television broadcasts of special Masses from the Vatican, see Centro Televisivo Vaticano.

While tickets to regular Masses at the Vatican are relatively easy to get in the days leading up to a Mass, Easter and Christmas Eve Masses at St. Peter’s Basilica require a reservation because of such high demand. Prospective attendees must send in a reservation request between two and six months in advance, Papal Audience says. Pope Francis, 78, acknowledged how demanding Holy Week can be on priests like himself on Thursday, but urged priests to revel in the “good and healthy tiredness,” of their duties.

“It is the exhaustion of the priest who wears the smell of his sheep, but also smiles the smile of a father rejoicing in his children or grandchildren,” Francis said, according to the Associated Press. On Thursday, Francis made the traditional trip to Rome’s Rebibbia prison to wash the feet of inmates, a display of humility and service to the downtrodden.