In the poem Vafþrúðnismál, collected in the Poetic Edda, the god Odin poses a question to the jötunn Vafþrúðnir, asking who among mankind will survive when the winter Fimbulvetr occurs.
Vafþrúðnir responds that they will be Líf and Lífþrasir, that the two will have hidden in the wood of Hoddmímis holt, they will consume the morning dew as food, and "from them generations will spring.
"[5] Rudolf Simek theorizes that the survival of Líf and Lífþrasir is "a case of reduplication of the anthropogeny, understandable from the cyclic nature of the Eddic eschatology."
Simek says that Hoddmímis holt "should not be understood literally as a wood or even a forest in which the two keep themselves hidden, but rather as an alternative name for the world-tree Yggdrasill.
Simek additionally points out legendary parallels in a Bavarian legend of a shepherd who lives inside a tree, whose descendants repopulate the land after life there has been wiped out by plague (citing a retelling by F. R. Schröder).