**Stanza 45:** In relation to the events of Ragnarok, Gjallarhorn is mentioned when Heimdallr uses it.
‘Mímr’s sons play, and destiny is kindled
at [the sound of?] the resonant Gjallarhorn;
Heimdallr blows loud — the horn’s aloft —
Óðinn speaks to Mímr’s head.
Chapter 15(p.17): Gjallarhorn is mentioned as the horn from which Mimir drinks from his well of wisdom.
...the master of the well is called Mimir. He is full of learning because he drinks of the well from the horn Giallarhorn.
Chapter 25-27(p.25): Gjallarhorn is introduced as the trumpet belonging to the god Heimdall, whose blast can be heard throughout all the worlds.
He has a trumpet called Giallarhorn and its blast can be heard in all worlds.
Chapter 51(p.54): It is foretold that Heimdall will sound Gjallarhorn to awaken the gods at the beginning of Ragnarok.
And when these events take place, Heimdall will stand up and blow mightily on Giallarhorn and awaken all the gods and they will hold a parliament together.
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