The possessor of the horn, embellished with Fánn's image, is the mythical person who, to Egil's vexation, has insisted on the claim of the lower world to his sons. If the skald has paraphrased correctly, that is to say, if he has produced a paraphrase which refers to the character here in question of the person indicated by the paraphrase, then it follows that "Fánn's brewing" and Fánn himself, like their possessor, must have been in some way connected with the lower world.
From the mythic tradition in Gudrunarkvida (ii.), we already know that a serpent, "a long heath-fish," is engraved and painted on the subterranean horn, whose sorrow-allaying mead is composed of the liquid of the three Hades-fountains.
When King Gorm (Hist., Dan., 427; cp. No. 46) made his journey of discovery in the lower world, he saw a vast ox-horn (ingens bubali cornu) there. It lay near the gold-clad mead-cisterns, the fountains of the lower world. Its purpose of being filled with their liquids is sufficiently clear from its location. We are also told that it was carved with figures (nec cælaturæ artificio vacuum), like the subterranean horn in Gudrunarkvida. One of Gorm's men is anxious to secure the treasure. Then the horn lengthens into a dragon who kills the would-be robber (cornu in draconem extractum sui spiritum latoris eripuit.) Like Slidrugtanne and other subterranean treasures, the serpent or dragon on the drinking-horn of the lower world is endowed with life when necessary, or the horn itself acquires life in the form of a dragon, and punishes with death him who has no right to touch it. The horn itself is accordingly a Fánn, an artificial serpent or dragon, and its contents is Fánn's hrosti (Fánn's brewing).
The Icelandic middle-age sagas have handed down the memory of an aurocks-horn (úrarhorn), which was found in the lower world, and was there used to drink from (Fornald., iii. 616).
Thus it follows that the hilmir Fán's hrosta, "the lord of Fan's brewing," mentioned by Egil, is the master of the Hades-horn, he who determines to whom it is to be handed, in order that they may imbibe vigour and forgetfulness of sorrow from "Urd's strength, cool sea, and Son's liquid." And thus the meaning of the strophe here discussed (Sonatorrek, 18) is made perfectly clear. Egil's deceased sons have drunk from this horn, and thus they have been initiated as dwellers for ever in the lower world. Hence the skald can say that Hilmir Fán's hrosta was inexorably firm against him, their father, who desired to keep his sons with him.[15]
From Völuspa (str. 28, 29), and from Gylfaginning (ch. 15), it appears that the mythology knew of a drinking-horn which belonged at the same time, so to speak, both to Asgard and to the lower world. Odin is its possessor, Mimer its keeper. A compact is made between the Asas dwelling in heaven and the powers dwelling in the lower world, and a security (ved) is given for the keeping of the agreement. On the part of the Asas and their clan patriarch Odin, the security given is a drinking-horn. From this "Valfather's pledge" Mimer every morning drinks mead from his fountain of wisdom (Völuspa, 29), and from the same horn he waters the root of the world-tree (Völuspa, 28). As Müllenhoff has already pointed out (D. Alterth., v. 100 ff.), this drinking-horn is not to be confounded with Heimdal's war-trumpet, the Gjallarhorn, though Gylfaginning is also guilty of this mistake.
Thus the drinking-horn given to Mimer by Valfather represents a treaty between the powers of heaven and of the lower world. Can it be any other than the Hades-horn, which, at the thingstead near Urd's fountain, is employed in the service both of the Asa-gods and of the lower world? The Asas determine the happiness or unhappiness of the dead, and consequently decide what persons are to taste the strength-giving mead of the horn. But the horn has its place in the lower world, is kept there—there performs a task of the greatest importance, and gets its liquid from the fountains of the lower world.
What Mimer gave Odin in exchange is that drink of wisdom, without which he would not have been able to act as judge in matters concerning eternity, but after receiving the which he was able to find and proclaim the right decisions (ord) (ord mér af ordi ordz leitadi—Hav., 141). Both the things exchanged are, therefore, used at the Thing near Urd's fountain. The treaty concerned the lower world, and secured to the Asas the power necessary, in connection with their control of mankind and with their claim to be worshipped, to dispense happiness and unhappiness in accordance with the laws of religion and morality. Without this power the Asas would have been of but little significance. Urd and Mimer would have been supreme.
With the dyrar veigar (precious liquids), of which the dead Helge speaks, we must compare the skirar veigar (clear liquids), which, according to Vegtamskvida, awaited the dead Balder in the lower world. After tasting of it, the god who had descended to Hades regained his broken strength, and the earth again grew green (see No. 53).