Here is the Russian tale of Ivan Bears-Son. With origins in a cave and what seems to be a fated encounter with darkness and then an underworld teeming with light and life, this story has all the mythic elements that permeate the winter solstice and the journey to the vernal equinox.
Story Sources: Russian Wonder Tales by George Post Wheeler; A Branch from the Lightening Tree by Martin Shaw; The Book of Symbols edited by Ami Ronnberg and Kathleen Martin
As always, a huge thank you to Co-Ag Music, a constant source of quality copyright free music.