
Italy · 15th Century
Around 1423, in a Carmelite monastery located near the city of Siena in Tuscany, a dramatic spiritual battle unfolded involving a Carmelite monk who was severely tormented by doubts regarding the Real Presence of Jesus Christ in the Blessed Sacrament. This monk, whose name is not recorded in historical documents, suffered from persistent diabolical temptations and uncertainties about the doctrine of transubstantiation—the teaching that the bread and wine truly become the Body and Blood of Christ during the consecration at Mass.
The monk's spiritual anguish was so severe that it appeared to be more than mere intellectual doubt; according to the account, he was under direct demonic oppression. The evil one sought to undermine his faith in the Eucharist, attacking the very foundation of his religious life. The suffering monk brought his doubts and torments to the sacrament of confession, seeking spiritual help and guidance. After receiving absolution and spiritual direction, he approached the altar to receive Holy Communion.
At the moment of receiving the consecrated Host, a miraculous liberation occurred. The monk was instantaneously freed from the demonic oppression and his doubts about the Real Presence vanished completely. Witnesses reported that the devil was cast out at the moment of Communion, demonstrating the power of the Eucharist to overcome spiritual evil and to confirm faith. This dramatic exorcistic miracle served to vindicate the truth of Christ's Real Presence in the Blessed Sacrament and to strengthen the faith of the entire monastic community.
The miracle was commemorated by one of the greatest artists of the early Italian Renaissance, Master Stefano di Giovanni, known as 'il Sassetta' (c. 1395-1450). Between 1423 and 1426, Sassetta created a magnificent altarpiece for the Carmelite Order's church in Siena, commissioned by the Arte della Lana (wool merchants' guild) for the feast of Corpus Christi. The altarpiece was designed specifically to uphold the doctrine of transubstantiation. One panel of the predella (the base of the altarpiece) depicts this very miracle: a young Carmelite monk struck dead at the altar, his cloak turned black, with a devil snatching his soul from his mouth, while the priest holds the bleeding Host. This panel is now preserved in the Bowes Museum in Barnard Castle, England, while other panels from the same altarpiece are scattered across museums in Siena, Melbourne, Budapest, and the Vatican.
The miracle is commemorated in a painting by Master Stefano di Giovanni, known as 'il Sassetta,' which is preserved in England at the Bowes Museum in Barnard Castle.
This miracle has solid diocesan-level documentation including bishop investigations, formal inquiries, or local Church decrees, though without Vatican-level recognition.
No formal Church approval or documentation has been found in official Church records.
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 Carlo Acutis exhibition page
Google Arts & Culture detailed view of the painting
Complete documentation of the dismembered altarpiece panels
Biographical information on the artist and his Eucharistic altarpiece commission