the.com/world tree

means A mythic cosmic tree whose structure holds together the different realms of the universe — underworld, earth, and heaven — often connecting and sustaining all of existence through its roots, trunk, and branches.

from The idea surfaces across many unrelated mythologies — Norse Yggdrasil, Mesoamerican ceiba trees, Siberian shamanic cosmologies, Finno-Ugric and Hungarian folklore — which is less a single borrowed word-story and more a recurring human pattern: trees were the biggest, most obviously 'connecting' things people saw, roots underground, crown in the sky, so cultures independently reached for the same image to map the cosmos. The English phrase itself is largely a 19th–20th century scholarly label, popularized through comparative mythology and translations of texts like the Poetic Edda, used to name this shared motif rather than to translate one original term.