One night, when he was praying in his cell, at St. Mary of the Angels, in the beginning of the year 1223, the tempter suggested to him not to watch and pray so much, but rather to adopt other modes of penance, because, from his age, more sleep and rest was absolutely necessary for him, and these watchings would be his death. Being aware of the malice of his infernal enemy, he retired to the woods, and threw himself down into a bush of briars and thorns, till he was covered with blood. "For," said he to himself, "it is much better that I should suffer these pains with Jesus Christ, than that I should follow the advice of an enemy who flatters me."
A brilliant light which surrounded him, disclosed to him a great number of white and red roses, although it was the month of January, and the winter was very severe. This was an effect of the power of God, who had changed the briars into rose-trees, which have ever since been evergreen and without thorns.
Angels, who appeared in great numbers, said to him: "Francis, hasten to return to the Church, Jesus Christ is there, together with His Blessed Mother." At the same time, he perceived himself miraculously clothed with a new habit of pure white; he gathered twelve roses of each color, and went to the church. After a profound adoration he addressed the following prayer to Jesus Christ, under the protection of the most Blessed Virgin: "Most holy Father, Lord of heaven and earth, Saviour of man, deign, through Thy great mercy, to fix the day of the indulgence which Thou hast been pleased to grant to this sacred place."
Our Lord answered him, that it was His desire that it should be from the evening of the vigil of the day when St. Peter the Apostle was delivered from his chains, to the evening of the following day. Francis, again asking in what manner this should be publicly made known, and whether his own assertion would be given credit to, he was directed to present himself before the vicar of Jesus Christ, to take with him some white and red roses as testimonials of the truth of the fact, also a number of his own brethren, who would testify to what they had heard; for, from the cells which were near the church, they had, indeed, heard all that had been said. Then the angels sang the hymn "Te Deum laudamus." Francis took three roses of each color in honor of the Most Blessed Trinity, and the vision disappeared.
Francis, accompanied by Brothers Bernard de Quintavalle, Peter of Catania, and Angelus of Rieti, set out for Rome, where he related to the Pope all that had happened at St. Mary of the Angels, in proof whereof, he presented to him the roses he had brought, and his companions testified to what they had heard. The Pope, astonished to see such beautiful and sweet-smelling roses in the depth of winter, said: "As to myself, I believe the truth of what you tell me, but it is a matter which must be submitted to the cardinals for their opinions." In the meantime, he directed his attendants to see that they should not want for anything.
The next day, they came before the consistory, where Francis, by the Pope's desire, said, in presence of the cardinals: "It is the will of God that whoever shall, with a contrite and humble heart, after having confessed his sins, and received absolution by a priest, enter the Church of St. Mary of the Angels, in the Diocese of Assisi, between the first vespers of the first day of August and the vespers of the second day, shall obtain an entire remission of all the sins he may have committed from his Baptism until that moment." The Sovereign Pontiff, seeing that the words of Francis were not thought to have any deceit in them, having conferred with the cardinals thereon for some time, confirmed the indulgence. And he subsequently ordered the Bishops of Assisi, Perugia, Todi, Spoleto, Foligno, Nocera, and Gubbio, to meet at the Church of St. Mary of the Angels, on the first of August of that year, and there solemnly to publish this indulgence.
All these prelates met on the day specified, and having mounted a large platform, which had been prepared outside of the church, they made Francis mount there also, to explain to the assembly, which was very numerous and gathered from all parts of the country, the cause of their meeting. He spoke with so much fervor that it seemed to be rather an angel who addressed the meeting than a man, and he ended his discourse by announcing the plenary and perpetual indulgence which God and the Sovereign Pontiff granted to this church every year on that day. The bishops were not satisfied with his publishing it to be in perpetuity. "Brother Francis," they said, "although the Pope desires us to do on this occasion whatever you wish, it is not, however, his intention that we should do things which are not suitable; therefore you must give notice that the indulgence is only to last for ten years." The Bishop of Assisi was the first to restrict it to this time, but he could not help saying, as St. Francis had, "in perpetuity." The other bishops endeavored successively to announce this restriction, but God permitted that, without intending it, they should all say, "in perpetuity." By this, they were made sensible of the will of God, and willingly proclaimed the indulgence to be perpetual.
Many of those who were at the sermon preached by Francis, have left testimony in writing to the effect, that he had in his hand a small scroll on which was written these words: "I wish you all to go to Paradise. I announce to you a plenary indulgence which I have obtained from the goodness of our Heavenly Father, and from the mouth of the Sovereign Pontiff. All you who are assembled here to-day, and with a contrite and humble heart have confessed with sincerity, and have received absolution from a priest, will have remission of all your sins; and in like manner, those who come every year with similar dispositions, will obtain the same."
Such is the way in which the famous indulgence of St. Mary of the Angels, or of Portiuncula, was published on the second day of August; an indulgence which the Sovereign Pontiffs have since extended to all the churches of the Order of St. Francis.
The seven prelates consecrated the Church of St. Mary of the Angels, and performed a similar ceremony for the Church of St. Damian, at the request of Francis and Clare. The remembrance of this is commemorated yearly at Assisi, on the ninth of August.