Over the centuries, in traditional folk culture, in addition to the products of material culture, a rich world of divine and demonic beings was formed, which provided the basis for the development of numerous myths, legends, folk tales and stories. Initially, the images of demonic beings were the personification of mysterious natural phenomena, which were incomprehensible to contemporary man: lightning, hailstorms, air whirlpools. Various demonic figures occurring in the Polish folk culture belong to the family of Slavic demonic ideas. After the Christianization of Poland, the Church fought against old practices and religious beliefs, but for a long time in various regions there was a phenomenon of "double faith". Old beliefs, practices and rituals connected with them permeated the local folk cultures permanently, contributing to the integration of individual rural communities. Many pagan customs were still cultivated in the 19th century, such as the rite of Forefathers