About Idun (Idunn, Iduna, Idhuna): Ramblings
Idun ("She Who Renews") is the Norse goddess of youth, who grows the magic apples of immortality that keep the gods young. Her husband Bragi was god of poetry.
Remember Pagan immortality doesn't mean "forever pacing in heaven." It's about the never-ending cycles of renewal and death that we observe and in which we participate. Despite all the fearmongering, ancient and modern, there's no uncertainty in spring and winter; ya gotta love that. And when the sun and earth runs out, there are other stars, and when the stars all run out, there is still the universe, and when the universe runs out, there is rest and another universe. Do your worst, you dirty, carbon dioxide polluters, you can't outdo the gods!
But about Idun...
Loki, the god of mischief and fire, was once responsible for arranging Her abduction by the giant Thajazi. Without Her apples, the gods soon began to age, and threatened Loki until He agreed to rescue Her, which He accomplished by borrowing Freyja's falcon robe and fleeing with Idun who He had changed to a nut. (This story must be a season-cycle tale; there are lots of them like this, apple to nut, etc.)
Some say that Gerd the Giantess is another aspect of Idun. Freyr brought her eleven golden apples and Draupnir. Sunna may also appear as the aspect Gerd, whose beautiful white arms, raised aloft, illuminated sea and sky. Freyr could see her from a great distance and fell in love.
As we are in love when the morning sun rises or when She returns from southern climes as She will begin to do on Mother's Night, gracing us with her light and warmth a little more each day. Even in the coldest winter, the longest night (literally), she holds the promise of renewal. I'd say that's a miracle or...humankind's propensity for hope. In either case, it's worth celebrating.
End of Ramble.