You wouldn’t expect a Norse myth to be a parable on economic exploitation, and how bad deeds rebound on the doer. Grottasöngr, a story of how king Frodi forced two giantesses to work a mill without cease, and thus wrought his own destruction, is an unusual myth.
Ymir, the first being in Norse myth, is the first creator, who gives life to a number of beings, and a giant who is more serviceable dead than alive. (Odin and his brothers make the world out his body.) There is a real tension in the Ymir story between these two views of him, reflecting the ambiguous attitude of Norse myth towards giants in general.
Gefjun will be forever be famous as the goddess who gave Zealand to Denmark. The Danes immortalized her feat with a fountain in Copenhagen harbour, showing her and her oxen ploughing out the land.
She has many similiarities to Odin, as a goddess who travels between worlds, tricks mortals, and straddles moral and sexual boundaries. Far from being an earth and ploughing goddess, Gefjun is a magical and complex figure.