Deepertruth: Eucharistic Miracle of Bois-Seigneur-Isaac, 1405

In the Eucharistic miracle at Bois-Seigneur-Isaac, the consecrated Host bled and stained the corporal. On May 3, 1413, the Bishop of Cambrai, Peter d’Ailly, authorized the devotion of the Holy Relic of the miracle along with a solemn procession.The first procession took place in 1414. On January 13th, 1424, Pope Martin V approved the building of the Monastery of Bois-Seigneur-Isaac. Today the monastery is the goal of pilgrimages. The corporal stained with Blood is exposed to view in the chapel. 

Starting on the Tuesday before Pentecost of the year 1405, the Lord appeared covered with His wounds to John of Huldenberg, master of the place. Only at the third apparition did our Lord speak ordering John “Go into the Chapel of Isaac, you will find Me there.” 

At the same time, the parish priest, Peter Ost, heard a voice instructing him to offer the Mass of the Holy Cross in the Chapel of Isaac. The following day the pastor summoned all the faithful to assist at Mass at the Chapel of Isaac. John of Huldenberg was among those present. The priest began the Mass, and when he unfolded the corporal he saw there a Particle of the large Host that had been consecrated the preceding Tuesday. He sought to receive the Host but the Eucharist clung to the corporal and began to Bleed. The priest turned white and John, who had observed everything, comforted him by saying: “Do not fear, this marvel comes from God”, and related his visions.