old norse . stylized image of the world tree - irminsul, from ancient european mythology

ancient asgard ash branch celtic tree life design eormen fantasy forest germanic gothic polar illustration irmin irminsul norse midgard nature north oak odin ornament constellation pattern plant sacred symbol tyr vector star nordic wicca sign viking wotan scandinavia ahnenerbe wreath spirituality white saxon runes roots valhalla ragnarok yggdrasil