The tree of life in Norse mythology is the sacred Ash, Yggdrasil. Branches of the tree spread over the entire sky, the leaves are clouds, the fruits are stars. The tree shelters are important to animal spirits. Four stages representing the four winds live in the branches. Odin, the foremost god in Norse myths, made the first man from a twig of the ash and the name ash is derived from the Norse word "aska" meaning man.