In Norse mythology, the Norns are vital figures akin to the Fates in Greek mythology. They are three sisters: Urd (the past), Verdandi (the present), and Skuld (the future), who govern the destinies of gods and mortals. The Norns weave the fabric of fate, influencing the lives and events of all beings. Their presence at the Yggdrasil tree underscores their connection to cosmic order, life cycles, and the inevitability of fate within Norse cosmology.