Since Fr. Serpa uses Wikipedia as a reference in some of his posts, I will too (I do not want to post an offensive source).
Pope Leo XIII had a “dream” or a “vision” of some sort (this is where the prayers to St. Michael came from):
en.wikipedia.org/wiki/Prayer_to_Saint_Michael
Speculation about the origin of the prayers
An article in the Roman journal Ephemerides Liturgicae (V. LXIX, pages 54–60) in 1955 gave an account in Latin and Italian of how the St. Michael prayer developed. Footnote nine of this account quotes an article in another Italian journal called La Settimana del Clero in 1947 by Fr. Domenico Pechenino who worked at the Vatican during the time of Leo XIII, in which he stated:
"I do not remember the exact year. One morning the great Pope Leo XIII had celebrated a Mass and, as usual, was attending a Mass of thanksgiving. Suddenly, we saw him raise his head and stare at something above the celebrant’s head. He was staring motionlessly, without batting an eye. His expression was one of horror and awe; the colour and look on his face changing rapidly. Something unusual and grave was happening in him.
“Finally, as though coming to his senses, he lightly but firmly tapped his hand and rose to his feet. He headed for his private office. His retinue followed anxiously and solicitously, whispering: ‘Holy Father, are you not feeling well? Do you need anything?’ He answered: ‘Nothing, nothing.’ About half an hour later, he called for the Secretary of the Congregation of Rites and, handing him a sheet of paper, requested that it be printed and sent to all the ordinaries around the world. What was that paper? It was the prayer that we recite with the people at the end of every Mass. It is the plea to Mary and the passionate request to the Prince of the heavenly host, (St. Michael: Saint Michael the Archangel, defend us in battle) beseeching God to send Satan back to hell.”
According to the same article in Ephemerides Liturgicae,[9] Cardinal Giovanni Nasalli Rocca di Corneliano wrote in his Litteris Pastoralibus pro Quadragesima (Pastoral Letters for Lent) that “the sentence ‘The evil spirits who wander through the world for the ruin of souls’ has a historical explanation that was many times repeated by his private secretary, Monsignor Rinaldo Angeli. Leo XIII truly saw, in a vision, demonic spirits who were congregating on the Eternal City (Rome). The prayer that he asked all the Church to recite was the fruit of that experience. He would recite that prayer with strong, powerful voice: we heard it many a time in the Vatican Basilica. Leo XIII also personally wrote an exorcism that is included in the Roman Ritual. He recommended that bishops and priests read these exorcisms often in their dioceses and parishes. He himself would recite them often throughout the day.”[10]
In the late twentieth century, more vivid stories circulated among traditionalist Catholics, according to which in that century Satan would be particularly powerful. They recounted that Pope Leo XIII was climbing the steps to the altar when he suddenly stopped, stared fixedly at something in the air and with a terrible look on his face, collapsed to the floor (some accounts say he fell shrieking). The Pope was carried off by those around him to another room where he came around. As one rendition of the story tells it:
"When asked what had happened, he explained that, as he was about to leave the foot of the altar, he suddenly heard voices - two voices, one kind and gentle, the other guttural and harsh. They seemed to come from near the tabernacle. As he listened, he heard the following conversation:
The guttural voice, the voice of Satan in his pride, boasted to Our Lord: “I can destroy your Church.”
The gentle voice of Our Lord: “You can? Then go ahead and do so.”
Satan: “To do so, I need more time and more power.”
Our Lord: “How much time? How much power?”
Satan: “75 to 100 years, and a greater power over those who will give themselves over to my service.”
Our Lord: “You have the time, you will have the power. Do with them what you will.”[11][12][13]
A variant of the story of the vision of Leo XIII was given by Father William Saunders in the Arlington Catholic Herald of 2 October 2003: "Pope Leo XIII (d. 1903) had a prophetic vision of the coming century of sorrow and war. After celebrating Mass, the Holy Father was conferring with his cardinals. Suddenly, he fell to the floor. The cardinals immediately called for a doctor. No pulse was detected, and the Holy Father was feared dead. Just as suddenly, Pope Leo awoke and said, ‘What a horrible picture I was permitted to see!’ In this vision, God gave Satan the choice of one century in which to do his worst work against the Church. The devil chose the 20th century. So moved was the Holy Father from this vision that he composed the prayer to St. Michael the Archangel.[14]
The first variant of the story to appear in print was that in a 1933 German Sunday newspaper article, which stated that, as a result of the vision, Leo XIII, shortly after 1880, ordered the prayer to Saint Michael to be recited. In reality, it was only in 1884 that the Pope instituted the Leonine Prayers, still at that time without the prayer to Saint Michael.[15]
In 1934, a year after the appearance of the earliest printed version of the story, a German writer, Father Bers, tried to trace the origin of the story and declared that, though the story was widespread, nowhere could he find a trace of proof. Sources close to the institution of the prayer in 1886, including an account of a conversation with Pope Leo XIII about his decision, say nothing of the alleged vision. Father Bers concluded that the story was a later invention that was spreading like a virus.[16]
The story is also found in Carl Vogl’s 1935 Begone Satan: A Soul-Stirring Account of Diabolical Possession in Iowa[17]
(Next post)
In a later version the vision is said to have occurred on 13 October 1884,[18] the year in which the Leonine Prayers were instituted without the prayer to Saint Michael. And yet another date, 25 September 1888, two years after Pope Leo XIII had added the prayer to the Leonine Prayers, was given in a 1991 version.[19]
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