In Norse mythology, Yggdrasil is the sacred tree that represents the axis of the world and connects the nine worlds of Norse cosmology. This evergreen ash tree is believed to be the embodiment of the entire cosmos or all of creation, symbolizing knowledge, life, decay, renewal, and the inherent balance of life.
In the legend, Yggdrasil's roots reach out to the different worlds, while its cup upholds the heavens. It is considered one of the most important symbols in Norse mythology and is still revered by many followers of Germanic paganism today.