Chaos, the primeval state of existence
According to Hesiod's poem, the "Theogony" (written around 700 BC), which can be seen as a reflection of popular belief, in the beginning there was chaos as the primordial state of being. Chaos was the primordial void - a dark, silent, formless and infinite strangeness without any trace of life.
Out of chaos first arose Mother Earth Gaea. Full of life and power, Gaea created high mountains, low lands, rivers, lakes and seas. Soon after, Chaos created Tartarus, the embodiment of the underworld, which found its home deep beneath the world of Gaea. Gaea and Tartarus united and created Typhoeus (Typhoon), a terrible, fire-breathing dragon with a hundred heads.
Then love appeared out of chaos, in the form of Eros. Eros was the most beautiful of all the Greek gods and represented the love that softens hearts and is inherently invincible.
Chaos also gave rise to Erebus, the symbolization of dark silence, and Nyx, the embodiment of night. Through the intervention of Eros, Erebus and Nyx united and Nyx created Aether (the atmosphere) and Hemera (the day).