The term Holy Guardian Angel (HGA) originates in the Catholic Church where a morning prayer is recited which reads, "Holy Guardian Angel whom God has appointed to be my guardian,direct and govern me during this day/ Amen". The idea of a Holy Guardian Angel is central to the book The Book of the Sacred Magic of Abra Melin the Mage by Abraham of Worms, a German Cabalist who wrote the book on ceremonial magick during the 15th century and which was later translated by Samuel Liddell MacGregor Mathers, a co-founder of the Hermetic Order of the Golden Dawn. He elaborated on this earlier work, giving it extensive magical notes, but the original concept goes back to the Zoroastrian Arda Fravaš ('Holy Guardian Angels'). In Mathers' publication of The Book of the Sacred Magic of Abramelin the Mage,