The lucky powers of the horseshoe are believed to date back to the story of a blacksmith named Dustan and a man who believed he was the devil. According to the story, a man came across Dustan and asked the blacksmith for shoes. Dustan recognized this man as the devil and nailed a horseshoe to the devil's hoof. Seeing that the devil was in great pain, it is said that he chained him while he was in agony and only released him after the devil promised never to enter a place where there had a horseshoe hanging above the door. Dustan later became Archbishop of Canterbury in 959 AD and is now known as Saint Dustan. Therefore, to prevent the devil from entering your house, it is necessary that you hang a horseshoe in a high position above your house.