This section is from the book "Ancient Legends, Mystic Charms, And Superstitions Of Ireland", by Jane Francesca Wilde. Also available from Amazon: Ancient Legends, Mystic Charms, And Superstitions Of Ireland.
This is a charm Mary gave to St. Bridget, and she wrote it down, and hid it in the hair of her head, without deceit-
" If a fairy, or a man, or a woman hath overlooked thee, there are three greater in heaven who will cast all evil from thee into the great and terrible sea. Pray to them, and to the seven angels of God, and they will watch over thee. Amen."
" The fire of earth is hot, and the fire of hell is hotter ; but the love of Mary is above all. Who will quench the fire? Who will heal the sick? May the fire of God consume the Evil One ! Amen."