Ireland, sluagh in Scotland and toili in Wales. The urco (güercu in Asturias) is a giant black dog who emerges from the sea or from a river to cause terror to the locals. They are also, per se, a bad omen. Traditions and beliefs While Galician was traditionally a profoundly Catholic society, in its beliefs there are many remnants of previous religious systems, in particular the belief on a pantheon of gods, now saints; in the reincarnation in form of an animal, when there are unfinished business; the evil eye and the sickness caused by curses; the holiness of crossroads and fountains, etcetera. The first attestation of the beliefs of the Galicians in a Christian context is offered by the Pannonian Martin of Braga who in his letter De Correctione Rusticorum condemns, among others, the belief in the Roman gods or in the lamias, nymphs and dianas, and also in practices as putting candles to trees, springs and crossroads. Sanctuaries are socially important places for pilgrimage (romaría) and devotion, each one under the protection of a saint or virgin Mary. There are different beliefs associated with each one: the sanctuary of Santo André de Teixido in Cedeira is associated with reincarnation, as it is said that a Santo André de Teixido vai de morto o que non foi de vivo ('to Saint Andrew at Teixido —yew-tree-copse— goes as dead the ones that didn't went while alive'). It is advised not to kill lizards or any other animal while in the vicinity. The Corpiño sanctuary near Lalín and San Campío near Tomiño are associated with the treatment of mental illness and evil eye or meigallo. Virxe da Barca in Muxía is built by the place where it is said that Mary arrived aboard a stone boat, a recurring myth in Galicia also present in Ireland and Brittany. Many of these places were probably built over pagan cult places. High crosses and calvaries, locally named cruceiros or peto de ánimas, are usually placed at crossroads, before sacred places, or marking a pilgrimage road. Placing flowers or lit candles before that monuments are common practices. In 1996 the Galician community in Ushuaia, Argentine, the southernmost city on the world, built a cruceiro with the legent 'Galicia shines in this land's end'. Traditional medicine was administered by menciñeiros and menciñeiras, who used both herbs and spells to treat illness. Also compoñedores and compoñedoras: healers