The angel Gabriel announces to Mary that she is to be the Mother of God.
As Mary uttered the words: "May it be done unto me according to thy word!" I saw an apparition of the Holy Ghost. The countenance was human and the whole apparition environed by dazzling splendor, as if surrounded by wings.
From the breast and hands, I saw issuing three streams of light. They penetrated the right side of the Blessed Virgin and united into one under her heart. At that instant Mary became perfectly transparent and luminous. It was as if opacity disappeared like darkness before that flood of light.
— Blessed Anne Catherine Emmerich
The Life of Jesus Christ and Biblical Revelations, Vol. 1 (1914 translation)