Thus we can also understand why Svipdag must traverse Nifelheim, "meet Nat on Nifelway," visit the world-mill, wade across Hel-rivers, and encounter Mimer himself, "the weapon-honoured." If Svipdag wants the sword made by _Loptr_, he must risk these adventures, since the sword is kept in the lower world by a kinswoman of Mimer.
The heroic saga about Volund is therefore identical with the myth concerning the maker of the sword which opens Asgard for Svipdag. The former, produced in Christian times, is only a new version of the latter. Volund is a foe of the gods, an elf-prince who was deeply insulted by beings more powerful than himself (No. 87). "The airy one" must likewise be a foe of the gods, since the weapon he has made is dangerous to the golden cock of the world-tree, and is bought by "the eleven wards" with the opening of Asgard's gate and the giving of Menglad as wife to Svipdag. Its danger to Asgard must also be suggested by Fjölsvin's statement, that the splendid hall, called _Hýrr_, "the gladdener," "the soul-stirring," that hall which is situated within the castle wall, which is encircled by vaferflames, and which from time out of mind has been celebrated among men--that this hall has already long trembled _á brodds oddi_, "on the point of the sword" (str. 32). No other weapon can here be meant than one which was fraught with the greatest danger to the safety of the gods, and which filled them with anxiety; and unless we wish to deny that there is sense and connection in the poem, this sword can be no other than that which Svipdag now has with him, and which, having been brought to Asgard, relieves the gods of their anxiety. And to repeat the points of similarity, Volund, like "Loptr," makes his weapon in the northern border-land of Mimer's domain; and when the sword is finished he is surprised by subterranean powers. In Loptr's saga, as in Volund's, a magnificent arm-ring is mentioned, and in both a dis of night received this ring to wear. In Loptr's saga, as in Volund's, a night-dis is mentioned who injures sinews. And Volund himself calls himself _Byrr_, "the wind," which is a synonym of _Loptr_.
Thus Svipdag has made a journey to the lower world to get possession of the sword of Volund, and he has been successful.