[3] Elsewhere in the poem, the völva mentions a scenario involving the hearing or horn (depending on translation of the Old Norse noun hljóð—bolded for the purpose of illustration) of the god Heimdallr: Scholar Paul Schach comments that the stanzas in this section of Voluspa are "all very mysterious and obscure, as it was perhaps meant to be".
Larrington says that "Odin exchanged one of his eyes for wisdom from Mimir, guardian of the well, while Heimdall seems to have forfeited his ear.
"[8] In chapter 15 of the Prose Edda book Gylfaginning, the enthroned figure High tells Gangleri (described as king Gylfi in disguise) about Yggdrasil.
One of these roots reaches to where the primordial space of Ginnungagap once existed and where now the frost jötnar live.
High explains that, beneath this root is Mímisbrunnr and that the well contains "wisdom and intelligence" and "the master of the well is called Mimir.