In ancient Roman mythology, pines were sacred to Attis, the god of vegetation, who transformed into a pine tree when he died. As evergreens, they were seen as a sign of vitality. Traditionally they were thought to ward off bad spirits as well as protecting buildings and cattle from misfortune, disease and even lightening. Barns and stables were often swept with pine-twig brushes and you would often see a sprig of pine above a doorway.