The story is about what the people writing it gathered from looking at and into the world around them. They deducted (before writing was invented, there was community, culture and society) the stories they received from every end of the world (mostly silkroad travelers and other traders), told of how others saw the world and that that which they didn’t understand (thinks they weren’t aware of that were responsible for effects), had to come from somewhere. Yet the word they used to point that the ‘abstract concept’ of time/fleeting memory/ancestral knowledge, has been misinterpreted. It doesn’t mean ‘lord’ (likely what now has been translated as ‘lord’ once was the meaning of precursor or ancestors), it doesn’t mean ‘god’ or anything related to ‘sentient’. Of course we would easily say that our parents or grandparents had insights in the future, if something fell positive from actions they started long ago. But that would mean that ‘god’ is actually to represent ‘divine insights’ of our ancestors). It means that what we experience comes from what is set in motion before our memory. Long ago, the heavens and earth have been created. How? Well there must have been a time when there was none and then there was light, then we could see it (that is as much as they could understand). Only when the there is light, things bloom, so we assume that life started with light (life saw it was good. Life could grow with it, so a positive injunction), so likely the earth started the same (in the eye of the early historic man). The light always changed from dark to light, it was a pattern, it also influenced everything around them: plants, animal behavior (night would be dangerous for humans, as predators were roaming freely). They became aware of change: days, behavior differences.
No mention of Dinosaurs, means 2000 years ago, there had been no recollection of anything like that (especially around the deadsea and other arabic countries, but did in the likes of norway). Only in some stories there were remnants of possible sea dwelling dinosaurs, but even those would cease due to limiting the species by the effects of catastrophe and ice ages. These stories ceasing to exist as there was no base anymore.