Jesus appeared to many saints, including St. Faustina and St. Margaret Mary. St. Joseph appeared at Fatima.
I know St. Maria Goretti and St. Dominc Savio appeared in dreams to certain people after their deaths.
St. Maria Goretti’s Message to Her Murderer
But no miracle was to be greater than the conversion of her murderer! It was an astonishing sequel to the drama of a would-be rapist who was sentenced to 30 years of prison. Unrepentent, showing no remorse for his awful crime, Alessandro would undergo a remarkable change. This was to occur after a remarkable dream he had during his 8th year of imprisonment.
"The dream was so vivid he could not distinguish it from reality. The prison bars and walls fell away and his cell was a sunlit garden blooming with flowers. Towards him came a beautiful girl dressed in pure white. He said to himself: ‘How is this? Peasant girls wear darkish clothes.’ But he saw it was Marietta. She was walking among flowers, smiling, and without the least fear. He wanted to flee from her but could not. Marietta picked white lilies and handed them to him saying, ‘Alessandro, take them!’ He accepted the lilies, one by one, fourteen of them. But a strange thing took place. As he received them from her fingers, the lilies did not remain lilies but changed into so many flaming lights. There was a lily turned to purifying flame for every one of the 14 mortal blows he struck her on the fatal day in Ferriere. Marietta said smilingly, ‘Alessandro, as I have promised, your soul shall someday reach me in heaven.’
“Contentment entered his breast. And the scene of incredible beauty dissolved in silence. When he awoke, it seemed that the rabid, choking, consuming feelings of hate, destruction, and bitterness that ruled within him were loosening their invisible bonds from his mind and flesh.” (“The Penitent” by Pietro DiDonato- Hawthorne Books, N.Y., 1962; pages 109-110)
The Dream was remarkable. Alessandro had never dreamed in his sleep. All he knew was that this dream of Marietta had opened up the gate of his interior world and exposed him to the light of God’s grace and mercy. From that time on, he was consumed to make reparation for his awful crime and sin.
St. Dominic Savio’s Appearance to St. John Bosco
In 1876, his recently-deceased disciple St. Dominic Savio appeared to St. John Bosco in a dream.
As you know, dreams come in one’s sleep. So during the night hours of December 6, while I was in my room - whether reading or pacing back and forth or resting in my bed, I am not sure - I began dreaming.
It suddenly seemed to me that I was standing on a small mound of hillock, on the rim of a broad plain so far-reaching that the eye could not compass its boundaries lost in vastness. All was blue, blue as the calmest sea, though what I saw was not water. It resembled a highly polished, sparkling sea of glass. Stretching out beneath, behind and on either side of me was an expanse of what looked like a seashore.
Read the rest at: americaneedsfatima.blogspot.com/2009/01/today-please-pray-to-saint-john-bosco.html
I found this book you might be interested in:
Apparitions of Modern Saints:
Appearances of Therese of Lisieux, Padre Pio, Don Bosco, and Others
Maybe someone who has read the book can advise whether it’s a good book to get.