Hiisi
Hiisi is a complex figure from Finnish mythology whose meaning evolved dramatically over time. Originally, the term hiisi referred to sacred natural sites: groves, hills, rock formations, and bodies of water where the ancient Finns performed rituals and made offerings. With the Christianization of Finland, these pagan sacred places were demonized, and hiisi transformed from a neutral or positive sacred concept into a malevolent spirit or demon associated with bad luck, illness, and death. In later folklore, hiidet (plural) are depicted as trickster-like entities, often the autochthonous pagan