Seidr is Norse magic concerned with knowing and changing the course of fate by symbolically weaving new events into being. The term, seidr, literally means string, thread, or cord; or as an action, to tether, snare, or bind. To control someone with magic was to metaphorically bind them. Associated with spinning and textile work, seidr was considered more commonly practiced by women, but also some men, including the gods Loki and Odin. Seidr can be traced to the Norns, the powerful women seated at the foot of Yggdrasil, tree of the world, spinning the threads of fate. Seidr has an element of sexual magic and is associated with queerness. The goddess Freya was adept in seidr. Using it caused a war between the Vanir of Vanaheim, who were mostly peaceful women, and the Aesir of Asgard, mostly warlike men.