Yggdrasil - The Tree of Life
Apart from being a popular Viking symbol, Yggdrasil or the Tree of Life is also an important fundamental of the Norse principle itself.
According to Norse folklore, this tree ties in with not just one but nine realms of the galaxy. These worlds are Alfheim, Asgard, Helheim, Jotunheim, Midgard, Muspelheim, Niflheim, Svartalfheim and Vanaheim.
These nine worlds make Yggdrasil a symbol associated with oneness. As a symbol of interconnectedness, Yggdrasil’s fruits could provide youthfulness based on Norse religious beliefs.
It was believed that this tree of life was brought to life again by a man and a woman who was said to survive the battle of Ragnarök (final battle of the Gods vs the giants; the end of the world in Norse mythology).
According to myths, if the tree dies, the whole world of the gods will die with it. Norse literature emphasizes that this tree is not only sacred, but it is mortal, and needs to be protected and taken care of.
Despite not being specifically mentioned in the myth related to Ragnarök ("fate of the gods"), some people believe that this particular tree protected lives and the reason why some survived Ragnarök.