He is given a potion by some Druids, which banishes all memory of his recent adventures and which also rids his wife Emer of the pangs of jealousy.
She recalled with bitterness how he'd plied her with potion, falsely igniting her deep seeded passions until there was no turning back from his rampant lust.
Already in the and century baptism was described as a bath in which the health of the soul is restored, and the Lord's Supper as the potion of immortality.
Like the story of Perceval that of Tristan has been made familiar to the present generation by Richard Wagner's noble music drama, Tristan and Isolde, founded upon the poem of Gottfried von Strassburg; though, being a drama of feeling rather than of action, the story is reduced to its simple elements; the drinking of the love-potion, the passion of the lovers, their discovery by Mark and finally their death.
Hagen, the Nibelung's son, has managed to make Siegfried unwittingly drink a love-potion with Gutrune, which causes him to forget his own bride, Briinnhilde.
The name of Grimhild is transferred to Gudrun's mother, the "wise wife," a semi-daemonic figure, who brews the potion that makes Sigurd forget his love for Brunhild and his plighted troth.