Notre Dame Cathedral on Sunday will host its first Mass since the catastrophic fire of 2019, a moment that transcends religious significance to become a powerful symbol of Paris’ resilience.

For Catholics, it marks the revival of the city’s spiritual heart, a place where faith has been nurtured for centuries. For the world, it signals the rebirth of one of humanity’s most treasured landmarks.

The event is both solemn and historic. Archbishop Laurent Ulrich will preside over the morning Mass, including consecrating a new bronze altar. This liturgy, attended by clergy, dignitaries and guests, is closed to the general public. It is a milestone in Notre Dame’s journey from ruin to resurrection — a process defined by extraordinary craftsmanship, nearly $1 billion in global donations, and an unyielding determination to rebuild what seemed lost.

Later on Sunday, an evening Mass will welcome members of the public who secured reservations last week. The Associated Press learned that tickets for this service were claimed within 25 minutes, underscoring Notre Dame’s enduring ability to inspire awe, devotion, and curiosity.

Public viewing areas along the Seine are expected to draw thousands more who wish to witness this historic moment from afar. What's more extraordinary is that this is taking place in a country with a strong emphasis on secularism, and a low rate of church attendance.

Sunday’s Masses follow Saturday evening’s ceremonial reopening in which Archbishop Ulrich symbolically reopened the cathedral’s massive wooden doors by striking them three times with a crosier crafted from charred beams salvaged from the fire. As the doors swung open, choirs filled the cathedral with song, and the cathedral’s great organ — silent since the fire — resounded with majestic melodies.

Inside, the restoration reveals a cathedral transformed with now-gleaming limestone walls cleaned of centuries of grime. The restored stained-glass windows project dazzling patterns of color across the nave.

“No one alive has seen the cathedral like this,” said Rev. Olivier Ribadeau Dumas, Notre Dame’s rector. "It is more than restored — it is reborn.”

Sunday morning’s liturgy will consecrate the new altar, a pivotal moment in Notre Dame’s return to full liturgical life.

The altar houses relics of five saints tied to Paris, including St. Catherine Labouré and St. Charles de Foucauld, continuing a centuries-old tradition of embedding sacred artifacts at the heart of worship spaces. The consecration, involving holy water, chrism oil, incense and prayer, transforms the altar into a sacred centerpiece of the cathedral.

The reopening of Notre Dame is more than a religious milestone, it is a moment of cultural and national unity. President Emmanuel Macron, who vowed to restore the cathedral within five years after the fire, attended Saturday’s ceremonies and called the project “a jolt of hope” for France, a nation often divided by political crises.

The Sunday morning Mass followed by an evening Mass open to the public underscores Notre Dame’s dual role as a place of worship and a symbol of communal resilience. It also ensures that members of the broader Catholic community can partake in the cathedral’s spiritual revival.

“This was not just about restoring a building. It was about restoring the heart of the nation,” Dumas said.

The path to restoration has been fraught with challenges. Lead contamination forced work to pause, and the COVID-19 pandemic added delays. Yet the project, overseen by architect Philippe Villeneuve, has been hailed as a triumph of human ingenuity and collective resolve. Cutting-edge fire prevention systems, including thermal cameras and a misting system, have been installed to safeguard the cathedral’s future.

Villeneuve described the effort as “restoring not just a building but the soul of a nation,” emphasizing the personal and national significance of the work.

With its spire once again piercing the Parisian sky, Notre Dame is poised to reclaim its role as a global beacon of faith and art. The cathedral, which previously welcomed 12 million annual visitors, is expected to draw 15 million in its new chapter.

This monumental revival is not confined to a single day. Ulrich has announced an “octave” of celebrations—eight days of special religious services, each with its own theme, running through Dec. 15. These daily liturgies, open to diverse groups from local parishioners to international pilgrims, emphasize Notre Dame’s role as a unifying spiritual hub.