Vinternatsbl贸<WBR>t/Haustbl贸<WBR>t/Winter鈥檚 Day, Norse (Viking/脕satr煤) In Norse mythology and 脕satr煤, a bl贸t is a sacred meal shared with the gods. Vinternatsbl贸<WBR>t, Vinternatsblot or Haustbl贸t, is to bid Winter welcome. Today marks the beginning of the Winter season in the old European calendar and is a harvest/Autumn ceremony, along the lines of Michaelmas, the feast day of St Michael (September 29).