Approved Eucharist Miracles can be very powerful to youth and young adults for faith formation and youth ministry. One that is my favorite and I have come back to time and time again is the
Miracle of Lanciano.
There was a priest having doubts about the real presence in the 8th century. During the Mass the Body and Blood of Christ that would have had the appearance of Bread and Wine took on the appearance of Flesh and Blood. The Flesh is real flesh and the Blood is real blood. These Relics can still be viewed today and should have decomposed long ago.
There have been scientific tests done - the Flesh is of a heart and the Blood is type AB (which just happens to be the Blood type on the Shroud of Turin - but that is for another day!).
Eucharistic Miracles are not needed for the faithful, but can be a good teaching tool for the Real Presence. EVERY MASS AND EUCHARIST IS A MIRACLE - A SPECIAL GIFT!
Mother Mary, Pray for us to know the Miracle of every Mass through the Holy Eucharist and Real Presence. AMEN