I was always fascinated by the Norse Mythology, although most exposure to it comes from games, movies and fantasy books. I'd like to read the original text (Poetic Edda) if I have the time and be in the mood. Until then, your summary will have to do!

It is interesting to notice the similarities in the mythologies of different cultures. Most of the big concepts are there in every cosmogony/mythology, adapted to each culture. For example, in Greek cosmogony, the Titan Kronos (Saturn) gives birth to Zeus who is hidden in a cave, drinking milk from a goat (Amalthea); when he comes of age, he rescues his brothers & sisters and together rebel and overthrow Kronos.

Chronologically, the source of all these mythologies and the shared patterns must have been the Sumerian mythology (the older one). I think these stories served the purpose you mention, to give life lessons & to strengthen community and family ties; since this wisdom is coming from the gods, it must be correct and the right thing to do. Also, it gives more credit to the King's Right to Rule, and the notion of Succession.

Good & informative article!