
Italy · 17th Century
On the Monday after Easter in 1604, in the town of Mogoro on the Italian island of Sardinia, Father Salvatore Spiga was celebrating Mass in the Church of Saint Bernard (San Bernardino). Father Spiga served as the pastor of this parish church, and the Monday after Easter (within the octave of Easter) was a day when many faithful attended Mass to continue their celebration of the Resurrection.
The Mass proceeded normally through the Liturgy of the Word and the Eucharistic Prayer. After Father Spiga spoke the words of consecration over the bread and wine, transforming them into the Body and Blood of Christ, he began distributing Holy Communion to the faithful who had come forward to receive. The congregation was devout, and many parishioners approached the altar rail to receive the Eucharist.
However, unknown to Father Spiga or others present, there were at least two men in the congregation who were in the state of mortal sin - grave sin that had not been confessed and for which they had not received absolution. Despite being in this state of spiritual death, these men presumed to receive Holy Communion, committing an additional grave sacrilege by receiving the Body of Christ unworthily. This was a serious violation of St. Paul's warning in 1 Corinthians 11:27-29 that whoever eats the bread or drinks the cup of the Lord unworthily "will be guilty of sinning against the body and blood of the Lord."
When these two men received the consecrated Hosts on their tongues and attempted to swallow them, something miraculous occurred. The Hosts fell from their mouths and dropped onto the stone floor of the church. But instead of simply lying on the floor or being damaged, the Hosts miraculously left permanent imprints - impressions of their exact shape and form - on the stone floor itself. The stone, which should have been far too hard to be marked by something as soft as bread, bore the clear impressions of the sacred Hosts, as if the stone had been soft wax when the Hosts touched it.
The miracle was immediately recognized by Father Spiga and the congregation. The two men who had received unworthily, confronted with what they witnessed as proof of the sacredness of what they had profaned and the gravity of their sin, were moved to repentance. The physical miracle served as both a rebuke of sacrilege and an invitation to conversion. The stone bearing the miraculous imprints was carefully preserved as evidence of what had occurred.
A public act (legal document) written by Notary Pedro Antonio Escano on May 25, 1686 - more than eighty years after the miracle - documents the ongoing veneration of the miraculous stone. This notarized document records that the Rector of Mogoro stipulated a contract for the construction of a wooden tabernacle over the main altar, with a special opening at the base designed specifically to display the "Stone of the Miracle." The stone was to be enclosed in a decorative case so that the faithful could view it and be reminded of God's real presence in the Eucharist and the seriousness of receiving Communion in a state of sin.
The stone with the imprints of the Hosts can still be seen in the Church of St. Bernardino today, more than four centuries after the miracle. To commemorate this event and to offer reparation for the sacrilege that prompted the miracle, a solemn Eucharistic procession is held every year in Mogoro on the Sunday after Easter (Divine Mercy Sunday), retracing the steps of the faithful who witnessed the miracle and renewing the community's reverence for the Real Presence of Christ in the Eucharist.
This miracle has been verified and endorsed by the local diocese with archiepiscopal approval, but documentation of Vatican-level review or recognition has not been located. This may represent diocesan-level recognition without formal Vatican submission.
The miracle was investigated by Bishop Antonio Surredo and his successors. Multiple historians including Father Pietro Cossu and Father Casu documented the findings and confirmed the miracle. However, Magisterium AI's database of 23,000+ official Catholic Church documents contains no record of formal Magisterial documentation or official Church approval of this particular miracle.
Recognition status cross-referenced using Magisterium AI, a third-party tool that searches a corpus of Catholic Church documents. This does not constitute official Church verification.
Official documentation including the account of Father Salvatore Spiga, the two men in mortal sin, the Hosts falling and leaving imprints, and the 1686 notarized document
Detailed account of the Monday after Easter Mass, the sacrilegious reception, and the miraculous stone imprints that remain visible today
Official Carlo Acutis exhibition page with visual documentation and historical information about the miracle