St. Dominic is one of the brightest saints the faith has produced, and he changed the Church with his dedication to embodying holiness so as to authentically proclaim the truth.

Dominic was born in 1170 in Castile, Spain, and went to university to study to become a priest. After his ordination, he took a trip with his bishop through France, where they met proponents of a heretical form of Christianity that was growing in popularity among the people. Believers of this heresy proposed two principles in the world—one good, one evil—and they believed that all physical matter was evil. Therefore, they rejected things of the body—they ate very little and had strict disciplines, which won the admiration of many people.

Dominic and his bishop began to counter this heresy through their preaching, but they had little credibility among the faithful because priests of the time lived a life of luxury and comforts. The strict lives of the heretics seemed heroic to the people.

Dominic’s answer was to establish an order of priests who would travel and preach against this heresy, living a simple life of prayer and intellectual study. The ideal for this community, the Order of Preachers, Dominic said, was “to pass on the fruits of contemplation” and to “speak only of God and with God.” Today, the Dominicans are present in 86 countries around the world.

While she was pregnant, Dominic’s mother had a vision that her son would light the world on fire like a hound running wild with a torch in its mouth.

The vision of Dominic’s mother came to fruition in the way he combined prayer and work. Prayer, Dominic knew, changes us, and thus, changes how we do our work. Our work, then, becomes an outflow of our prayer, even when it seemingly has nothing to do with spiritual matters. When we live a life rooted in prayer, our actions communicate God’s presence in places used to cold and darkness. Prayer transforms us into a hound running wild with a torch in its mouth—we set the world on fire.

St. Dominic’s relics rest in the reliquary chapel in the Basilica, and he is also depicted there in stained glass. One window shows him receiving the rosary from Mary—he is known to have spread the devotional prayer through his preaching. He is often depicted with a star above his head because at his baptism, his mother saw a star shining from his chest. Thus, he is the patron saint of astronomers.

St. Dominic, who set the world on fire with prayer—pray for us!