In Norse mythology, the Yggdrasil tree serves as the cosmic tree, connecting the nine realms and representing the interconnectivity of existence. It symbolizes life, death, and rebirth, acting as a support system for all beings within cosmology. Yggdrasil’s roots stretch into various realms, including Hel and Asgard, desiring to maintain balance in the universe. The tree is a source of knowledge and serves as a meeting place for gods, highlighting vital connections between worlds, cultures, and the natural order of life.