There is no doubt that the discovery of fire, or the invention to produce it, was one of the fundamental steps in the humanization of man. That's why I remember referring to you in a previous post, @ladyrebecca, the film (in my opinion, of great quality) The fire saga or The war of fire, by Jean-Jacques Annaud.
Surely, as you say, around the fire, came the narrations and songs, even if they were not in articulated language, but by mimics and guttural sounds, which would be giving rise to what would later be the theater (thought so by Antonin Artaud).
I like that you claim the ancient meaning of the so-called "fairy tales" ("marvellous tales", they are also called).

Thanks for your good post, @ladyrebecca.