Give a man a fire and you warm him for a day. But set a man on fire and you warm him for his lifetime.
Madness string 968
My impression was always that everything is made of sweat. First the cow licked the giant out of the salt, and then everything else, giants, svartalfar, lysalfar, various pre-gods, emerged from his sweat. Some from the armpits, some from... well, any sweaty part.