(From Hands At Mass by Walter Nurnberg)

“ ‘Do you believe that a piece of bread could detach itself and go on its own and place itself on the tongue of one who was coming to receive it?’ I asked this one day of two Protestant ministers who did not believe in the Real Presence of Our Lord. ‘No.’ Then it is not bread.’

Here is a story of which I myself am a witness. A man had temptations against faith in the Real Presence. How does one know it? It is not certain. The Consecration, what is it? What happens on the altar at that moment? But he wished to be delivered from these temptations, and he prayed to the Blessed Virgin to obtain for him a faith simple and peaceful.

Listen now. I do not say that this happened somewhere. I say that it happened to me. At the moment when this man came to receive Communion, the Sacred Host left my fingers while I was yet a good distance away. It went of Itself
‘and placed Itself on the tongue of this man. See how that ought to strengthen our faith! But, my God, what need have we of proofs after the words of Jesus Christ Himself.”

(From the Eucharistic Meditations of the Cure of Ars)