The Most Ancient Lives of Saint Patrick/The Life and Acts of St. Patrick/Chapter 188
The Place of his Sepulture is foreshown by a Light from Heaven.
And after a few days Patrick, the most holy old man, rested on a place not far distant from the mother church of the city of Dunum; and with him was Brigida, the spotless Pearl of Hibernia, and no small assembly of religious and ecclesiastical persons. And while the saint discoursed unto them of the glory of the saints, a great light descended from heaven, and poured round a certain spot on the eastern side of the cemetery; at the which marvelling, they enquired of the saint what meant that light, and the holy prelate bade the blessed Brigida to explain to them the meaning thereof. Then the virgin openly declared that the so great light denoted and sanctified the burial-place of a certain saint most illustrious and dear unto God, who therein would shortly be buried. And the holy woman, Ethembria, who first of all the nuns in Hibernia had been consecrated by Patrick, privily enquired of Brigida who was the saint. And she answered that Saint Patrick himself, the father and apostle of Hibernia, would soon be buried in that place, but that in process of time he would be removed from thence; and further she pronounced that she would be happy if she might enshroud his most holy body in a linen cloth, which she had made with her own hands and woven for his obsequies. This said she secretly unto her sister nun, nor deemed she her words overheard of any. Then the light which appeared from heaven was taken up from their eyes, and foreshowed the ascension of the saint unto heaven.