What does the sun explain exactly? — frank
This is a weird question, since the sun explains almost everything that happens in an ordinary life. The cycles of day and night, the seasonal cycles, the growing of crops, the biological rhythms, rains... it is hard to see a relevant aspect of primitive life that is not directly and clearly related to the sun. (Hard, but not impossible. Volcanoes would be an example).
Now, your follow-up question is related to
unenlightened's post. Why is it that the gods have retreated? This is a big question with a proportionately big answer, but the beginning of that answer is the observation that this was the work of Abraham and his heirs. The de-divinization of the world was achieved as a direct effect of the development of monotheism; a monotheism that insisted (against all evidence, in the contemporary worldview) that the one god that mattered (originally -- later, they would claim that he was the only god that was real in any sense) was emphatically
not to be identified with the sun, the storm, the ocean, and other "big powers".
In other words, while 40,000 years ago our unconscious reacted (unconsciously
:D) to any significant and relevant (and recurring) new phenomenon by adding a new god, under Abraham and his heirs, the worldview was "this is NOT a new god". Even though the path of least resistance was to accept the phenomenon as a new god (which is why the OT is a chronicle of "relapses into idolatry", by the viewpoint of the authors of the documents).
Clusters of observations are auto-associated in a neural network, I understand, so that would make a god concept superfluous to the task of unification on an individual level. God’s could add meaning and in so doing unify on a social level. — praxis
Yes, a god concept is superfluous in certain circumstances. But an important part of the story is that we must distinguish between our conscious minds and the unconscious substrate that engenders our thoughts. There is a two-way street between these two. Our concepts (consciously and painstakingly developed) influence our unconscious. This means that a concept may look superfluous if examined by its instrumental values, but it may have other effects (and the tough part of it is that these other effects are unconscious, i.e., we don't know about them, not directly).
I think that your phrase "Gods could add meaning" is an attempt to address this unconscious process. It is a good attempt, I can't think of anything as succinct as that which would be better. But we don't really know what "Gods could add meaning" means
:D.
A more general comment to the OP is that it approaches the issue from a cognitive/perceptual angle, but that is not the whole story. Gods are not
merely mental instruments for dealing with the world, they are also judges and avengers and "rewarders". In the unconscious out of which the gods emerged, there is no neat boundary between cognition/perception and morality.
(And perhaps there should not be. Perhaps this is how "Gods could add meaning" works).