In 398 AD, St. Augustine shared the following story about a probable visitor from beyond the veil in a letter to his friend, Evodius:
“Our brother, Gennadius … told us that he doubted once … whether there was any life after death. As God would not abandon a man of his disposition and works of mercy, there appeared to him in sleep a handsome youth of dignified appearance, who said to him: ‘Follow me.’ He followed and came to a certain city, where he began to hear, on his right, singing of such exquisite sweetness that it surpassed all known and ordinary sweetness. Then, as he listened, he asked what it was and his guide said it was the hymns of the blessed and the saints. I do not clearly remember what he said he saw on his left. When he awoke, the dream vanished and he thought of it only as one does of a dream.
But, on another night, behold, the same youth appeared to him again and asked whether he recognized him; he answered that he did so fully and perfectly. Then the youth asked where he had known him. He remembered what to reply to that, too, and described the whole vision and the hymns of the saints which the other had led him there to hear, recalling them with ease as a recent experience. Thereupon, the youth asked whether he had been asleep or awake when he saw what he had described. He answered: ‘It was in a dream.’ The other said: ‘You remember well, it is true, that you saw all that in a dream, but you must know that even now you see, although you are asleep.’ When he heard that, he believed it was so and expressed it by his answer.
Then the one who was teaching him continued and said: ‘Where is your body now?’ He answered: ‘In my bedroom.’ ‘And do you know,’ said the other, ‘that in that same helpless body, your eyes are fast shut and useless, and that you see nothing with those eyes?’ Gennadius answered: ‘I know it.’ His guide went on: ‘Then, with what kind of eyes do you see me?’ He fell silent at this, finding no reply, and, as he remained in doubt, the youth made known what he was trying to teach by these questions.
He went on: ‘As those eyes of flesh are now inactive and perform no function while your body lies asleep in bed, yet you have eyes with which you behold me and a sight of which you make use, so, when you die and the eyes of your flesh see nothing, there will be in you another life by which you will live and sense by which you will perceive. See to it that henceforth you do not doubt of the life which remains after death.’ Thus this faithful man says that his doubt on this matter was removed, and what was his teacher but the providence and mercy of God?”
In 593 AD, Pope St. Gregory the Great related this story in his Dialogues:
“Bishop Felix…said that he had been told of such a case by a saintly priest who was still living two years ago in the [Italian] diocese of Centum Cellae as pastor of the Church of St. John in Tauriana [on the toe of Italy.] This priest used to bathe in the hot springs of Tauriana whenever his health required. One day, as he entered the baths, he found a stranger there who showed himself most helpful in every way possible, by unlatching his shoes, taking care of his clothes, and furnishing him towels after the hot bath.
After several experiences of this kind, the priest said the himself: ‘It would not do for me to appear ungrateful to this man who is so devoted in his kind services to me. I must reward him in some way.’ So one day he took along two crown-shaped loaves of bread to give him.
When he arrived at the place, the man was already waiting for him and rendered the same services he had before. After the bath, when the priest was again fully dressed and ready to leave, he offered the man the present of bread, asking him kindly to accept it as a blessing, for it was offered a token of charity.
But the man sighed mournfully and said, ‘Why do you give it to me, Father? That bread is holy and I cannot eat it. I who stand before you was once the owner of this place. It is because of my sins that I was sent back here as a servant. If you wish to do something for me, then offer this bread to almighty God, and so make intercession for me, a sinner. When you come back and do not find me here, you will know that your prayers have been heard.’
With these words he disappeared, thus showing that he was a spirit disguised as a man. The priest spent the entire week in prayer and tearful supplications, offering Mass for him daily. When he returned to the bath, the man was no longer to be found. This incident points out the great benefits souls derive from the Sacrifice of the Mass. Because of these benefits the dead ask us, the living, to have Masses offered for them, and even show us by signs that it was through the Mass that they were pardoned.”