In a letter from Padre Pio to Padre Benedetto, dated 21 August 1918, Padre Pio writes of his experiences during the transverberation:
While I was hearing the boys’ confessions on the evening of the 5th [August] I was suddenly terrorized by the sight of a celestial person who presented himself to my mind’s eye. He had in his hand a sort of weapon like a very long sharp-pointed steel blade which seemed to emit fire. At the very instant that I saw all this, I saw that person hurl the weapon into my soul with all his might. I cried out with difficulty and felt I was dying. I asked the boy to leave because I felt ill and no longer had the strength to continue. This agony lasted uninterruptedly until the morning of the 7th. I cannot tell you how much I suffered during this period of anguish. Even my entrails were torn and ruptured by the weapon, and nothing was spared. From that day on I have been mortally wounded. I feel in the depths of my soul a wound that is always open and which causes me continual agony.
On September 20, 1918, accounts state that the pains of the transverberation had ceased and Padre Pio was in “profound peace.”On that day, as Padre Pio was engaged in prayer in the choir loft in the Church of Our Lady of Grace, the same Being who had appeared to him and given him the transverberation, and who is believed to be the Wounded Christ, appeared again; and Padre Pio had another experience of religious ecstasy. When the ecstasy ended, Padre Pio had received the visible stigmata, the five wounds of Christ. This time, the stigmata were permanent. They stayed visible for the next fifty years of his life.