Yggdrasil In Norse mythology, Yggdrasil (pron. from Old Norse Yggdrasill, pronounced [ˈyɡːˌdrasilː]) is an immense tree that is central in Norse cosmology, in connection to which the nine worlds exist.
NN Vegvisir - The Icelandic word literally means ‘guidepost’: It is a Norse protection symbol, intended to help the bearer find their way through bad weather. ”if this sign is carried, one will never lose one’s way… even when the way is not known”
The Ouroboros or Uroborus often represents self-reflexivity or cyclicality, especially in the sense of something constantly re-creating itself, the eternal return, and other things perceived as cycles that begin anew as soon as they end (compare Phoenix).