Considering that she may have started a cosmic war, we know very little about the Norse goddess Gullveig. Her story comes from the Eddic poem Völuspá, which tells how the Aesir riddled her with spears and then burned her three times but couldn’t kill her.
The next event in the poem is the war between the Aesir and Vanir, the two groups of Norse deities, so it’s always been assumed that somehow the attack on Gullveig started it.
When I was young, I imagined the manna that fell from heaven as being some sort of bread, possibly akin to communion wafers. It made sense to my young, Catholic, self.
Much later in life, I had to rethink the nature of manna, because of two books. One was the Poetic Edda, and the other was The Hive by Bee Wilson (a very appropriate name). Wilson’s book talks mainly about honey from the hive, but she does mention manna or meli, as the ancient Greeks called it, which falls from ash trees.
In Norse myth we have two stories involving the theft of a substance that confers a magical benefit to the user. Both involve the thief taking the form of an eagle. Both involve a pursuit with a god and a giant. Of course, the two myths have very different results, although in both cases the final score is Aesir 1, Jotunar 0.
One is the myth of the giant Þiazi kidnapping Iðunn to get the apples of immortality, the other is the story of how Oðin stole the mead of poetry from the giant Suttungr.