Is Tapio a god or a nature spirit?
Both fit the sources. The oldest records treat him as a god of hunters, the rune songs often as the supreme forest haltija, meaning the protective lord of a place. Only Lönnrot’s Kalevala shaped him into a king with a family and court; for the practice of the singers, the distinction was of little consequence.
What is Tapiola?
Tapiola, also Metsola, is Tapio’s realm: the forest as its own household with courts, storehouses and servants. In the Kalevala, Lemminkäinen sees the golden windows of Tapio’s courts shimmering through the moors. The name later passed to the district of Espoo and to Sibelius’ tone poem.
How did people protect themselves from the forest cover (metsänpeitto)?
Folk tradition recommended turning one’s clothing inside out, pouring water into one’s own footprint or carrying steel. As a precaution, greeting the forest and offering it gifts were considered the best protection, since according to the tales the cover mainly affected the inconsiderate.