Ginnungagap appears as the primordial void in the Norse creation account, the Gylfaginning states:

Ginnungagap, the Yawning Void ... which faced toward the northern quarter, became filled with heaviness, and masses of ice and rime, and from within, drizzling rain and gusts; but the southern part of the Yawning Void was lighted by those sparks and glowing masses which flew out of M\xfaspellheim

In the northern part of Ginnungagap lay the intense cold of Niflheim, and to the southern part lay the equally intense heat of Muspelheim. The cosmogonic process began when the effulgence of the two met in the middle of Ginnungagap.