When the Spaniards came to Bantayan, the people already had some form of religious convictions and worship, such as animism, shamanism, evocation and magic. They easily conceived the idea of evil spirits, good spirits, witches and ghosts. In order to please these imaginary creatures people often resorted to charms, vows, sacrifices and self-harm. It was a common belief among the illiterate people of the past that cholera and other fatal diseases were caused by poison which an evil spirit had put into the wells and that the people could be saved from the dreaded disease only by chanting prayer and holding processions.