>>90428778They weren't physical and living in the same dimensional plane.
That's from Lovecraft, before there was anything there were monsters, older than the universe itself, called the Old Ones.
Then the nothingness, that's from pretty much all myths humans ever created. There was nothing, which is usually referred the chaos. This darkness of inexistence is constantly described as an endless ocean or pool of water.
The Egyptians called this black water of chaos Nun. Even though she was there they don't consider her like existing, the first thing to actually exist was Atum, god of creation, who came out of the water.