During a Mass in Boxmeer, Holland, in the year 1400, the species of wine was transformed into Blood and bubbled out of the chalice, splashing onto the corporal. The priest, terrified at the sight, asked God to forgive his doubts, and the Blood immediately stopped bubbling out of the chalice. The Blood that had fallen onto the corporal coagulated into a lump the size of a walnut. Even today one can see the Blood, which has not changed at all over time. May all doubts of the Real Presence of Jesus in the Eucharist be banished from your mind. May you come to truly believe and worship Him in the Eucharist at Mass and Adoration.