Ginnungagap

The trail starts before anything was made. In Gylfaginning there was Niflheimr in the north, Múspellsheimr in the south and between them an empty gap, Ginnungagap. Its northern part filled with ice and frost, its southern part was lit by sparks, and where the warm air met the frost it melted into drops, from which the giant Ymir came. The entry notes that Völuspá has Odin and his brothers make the world from the gap without this two-sided picture.