the host has been transformed into human flesh. However, a Eucharistic miracle more commonly reported is that of the Bleeding Host, where blood starts to trickle from a consecrated host, the bread consecrated during Mass. Other types of purported miracles include consecrated hosts being preserved for hundreds of years, such as the event of the Miraculous Hosts of Siena. Other miracles include a consecrated host passing through a fire unscathed, stolen consecrated hosts vanishing and turning up in churches, and levitating consecrated hosts.The Mass at Bolsena, depicted in a famous fresco by Raphael at the Vatican in Rome, was an incident said to have taken place in 1263. A Bohemian priest who doubted the doctrine of transubstantiation, celebrated Mass at Bolsena, a town north of Rome. During the Mass the bread of the eucharist began to bleed. The blood from the host fell onto the altar linen in the shape of the face of Jesus as traditionally represented, and the priest came to believe. In 1264, Pope Urban IV instituted the Feast of Corpus Christi. There have been numerous other alleged miracles involving consecrated Hosts. Several of these are described below. A story from Amsterdam, 1345, claims that a priest was called to administer Viaticum to a dying man. He told the family that if the man threw up, they were to take the contents and throw it in the fire. The man threw up, and the family did what the priest had advised them to do. The next morning, one of the women went to rake the fire and noticed the Host sitting on the grate, unscathed and surrounded by a light. It has apparently passed into both the man's digestive system and the fire unscathed. The story is commemorated with an annual silent procession through central Amsterdam. According to another story, a farmer in Bavaria took a consecrated Host from Mass to his house, believing that it would give him and his family good fortune. However he was plagued by the feeling that what he had done was very wrong and turned to go back to the church to confess his sin. As he turned, the Host flew from his hand, floated in the air and landed on the ground. He searched for it, but he could not see it. He went back accompanied by many villagers and the priest who bent to pick up the Host, having