This weekend the Church celebrates the Solemnity of the Body and Blood of Christ, a feast perhaps better known by the Latin Corpus Christi. At its core, the solemnity is a celebration of the Tradition and belief in the Eucharist as the Real Presence of the Body and Blood of Jesus Christ. Many folks wonder why this celebration is not part of Holy Thursday, and it was, mixed in with other themes, e.g., institution of the priesthood. And, all this occurs in the shadow of Good Friday. The placement of the celebration is not one that necessarily lends itself to a joyful celebration.
Saint Juliana of Liège, O.Praem, was the one who became the spark leading to a joyous celebration of Corpus Christi. For her devotion, life, and efforts, she is known as the “Apostle of the Blessed Sacrament.” Liège was already a center for devotion to the Eucharist, so from her early youth, Juliana had great veneration for the Eucharist and longed for a special feast day in its honor. In 1208 at age 16, she began having visions of the moon in its full splendor, crossed diametrically by a dark stripe. In time, she came to understand that the moon symbolized the life of the Church on earth, the opaque line, on the other hand, represented the absence of a liturgical feast in honor of Christ’s Body and Blood. Not having any way to bring about such a feast, she kept her thoughts to herself, except for sharing them with Blessed Eve of Liège, who lived in a cell adjacent to the Basilica of St. Martin, and a few other trusted sisters in her monastery. The vision was repeated for the next 20 years, but she maintained it as a secret. When she eventually relayed it to her confessor, he relayed it to the Bishop of Liège, Robert de Thorete. Eventually, the celebration of Corpus Christi became part of the annual celebrations in the diocese.
The archdeacon of the diocese, Jacques Pantaléon of Troyes was also won over to the cause of the Feast of Corpus Christi during his time in the Diocese of Liège. He eventually became Pope Urban IV in 1264. He instituted the Solemnity of Corpus Christi on the Thursday after Pentecost as a feast for the entire Latin Rite, by the papal bull Transiturus de hoc mundo.