The sky is called the skull of Ymir, the burden of the dwarves, and the helmet of the wind. Bragi explains how the skald may draw images from the cosmogony of the creation narrative, where the gods formed the sky from the giant's cranium and set four dwarves to hold it up.
Himinn er kallaðr hauss Ymis, þvíat Óðinn ok bræðr hans tóku hausi Ymis ok gerðu þar af himininn ok settu hann yfir jörðina. Fjórir dvergar halda hann upp, einn á hverju horni.
The sky is called the skull of Ymir, for Odin and his brothers took the skull of Ymir and made the sky from it and set it over the earth. Four dwarves hold it up, one at each corner.
Himinn heitir ok hjálmr vinds ok þak veraldar. Þá er sól gengr um himininn, má hann kalla vegr tungls ok golf sólar.
The sky is also called the helmet of the wind and the roof of the world. When the sun traverses the sky, one may call it the path of the moon and the floor of the sun.