Goddess Nyx was a primeval goddess and the symbol of the night. Nyx was born out of Chaos and was the sister of Erebus, who embodied the dark silence.

According to the Greek writer Hesiod in his "Theogony", Nyx resided in a gloomy house located in Tartarus, in the depths of Hades' Underworld. Nyx was sharing her residence with her daughter Hemera, the embodiment of the Day, without the two of them ever meeting each other at home.

Evey day, Nyx was residing in her home all day long, taking care of her fifteen dark spirited children, among them Hypnos (the sleep) and Thanatos (the death). By the evening, Nyx was leaving her home to set off for her nightly jouney. On her way she met Hemera, the Day, who was returning home from her daily trip and they were greeting each other peacefully.