Because it's midnight in the mountains, and in the early development of the Sacred Marriage, people held the sacred ritual on mountaintops. For the mountain was seen as a supernatural symbol, a place where the Earth rose up to meet the Sky. It was the meeting place of the visible with the invisible. The holy mountain of the Goddess was seen as a Cosmic Mountain, the Axis Mundi, the sacred centre of the World around which everything revolved.
and this is what we need.