"Religion" is sort of a vague term.
Yes it is. So are "spirituality" and "morality." So is "God." But we have to start someplace.
Everything from meditation to cultural ceremonies to scriptural dogma can fall under religion. Generally, though, it seems that religion in general has roots in animism and ancestral worship, which isn't that strange.
Perhaps I should have used a different word, and I would have likely begun with "morality." I agree with this statement of yours here, of course, but I understand these by the term "Institutional Religion," a term coined by William James, "the Father of American Psychology." Rather, it is towards the "roots in animism and ancestral worship" that my studies have concentrated.
From an evolutionary standpoint, our minds have what's called a "hyper-active agent detection device" and we naturally tend towards mind-body dualism.
This is the first I've heard of "hyper-active agent detection device," and I see there is some debate over its application in the manner you point to.
Per Wiki:
Psychologists Kurt Gray and
Daniel Wegner wrote:
[2]
The high cost of failing to detect agents and the low cost of wrongly detecting them has led researchers to suggest that people possess a Hyperactive Agent Detection Device, a cognitive module that readily ascribes events in the environment to the behavior of agents.
I can see the application to a wild animal, and in a very real sense that would be the state of mind of these pre-historic humans. Essentially it is a state of continual paranoia, always on guard, always on defense mode, always ready to run at the drop of a hat. I do think humans were a half step above that though, considering they did have fire, they did have weapons, and they were if not apex predators certainly very high up the ladder. Unarmed and alone though, that would definitely lower their defensive potential and place them in a constant state of paranoia. How that translates into inventing "god" I do not see, and not for lack of trying.
This is also the first I recall of "mind-body dualism," and since there are those that disagree with that assessment I think it is premature to accept that "we naturally tend towards" it. Separating the mind from the body sounds nice philosophically, but since each is dependent on the other I will reserve judgment for the moment, if you don't mind. I'm simply not fully convinced of the statement out of hand.
The second part also makes some sense, because it helps us recognize the difference between a rock and an animal with some form of agency. Of course, this on its own can lead to ancestral worship, like when somebody you were close with dies and you still "hear them in your head." Ancient humans had a hard time distinguishing that sort of thing from reality. Just look at how many ancient cultures regarded dreams as taking place in some other realm or as messages from another world. Biblically, many prophets apparently communicated with angels in their dreams, which is a huge part of this mind-body dualism.
"Agency" is yet another fraught word with multiple meanings, pending context. If by agency you are implying "spiritual intercession" or some equivalent, I'm not prepared to go there, certainly not yet. I'd like to stay with observable facts as much as I possibly can. "Proving G-d" is a difficult enough endeavor not to confound it with additional complications.
I don't think ancient humans had any difficulty at all distinguishing reality from non-reality, I suspect, given their "unopened" mind not yet polluted with opioids from eating grain, that they were probably very in-tune with the real world immediately around them, far more so than a typical, modern city dwelling human today. That is both in a sleeping and awakened state.
The "ancient cultures" you mention here are many thousands of years *later,* and not to be convoluted with the pre-agricultural hunter/gatherer cave dwellers. On the contrary, there are multiple examples of cave art that depict "hallucinations," and they are not the painted animals. They are the geometric designs that are often overlooked except by those astute researchers that look closely at the details. There is some suggestion, still in its infancy, that some of these geometric patterns contributed to the development of alphabets.
Alongside the hyper-active agent detection, we suddenly start seeing the sky or the rivers as having minds of their own. That gets pretty close to polytheism and we have a decent understanding of how polytheism naturally blends into monotheism as various gods begin to merge together into a single deity. Now we understand how religions from Shinto to Christianity can all come to be from the same basic evolutionary biases.
I don't think it is quite this quaint, I think this point of view, if you will excuse me as this is nothing personal, this point of view demonstrates a great deal of cultural narcissism. Even looking through historic times, I don't see this. So imputing it to pre-historic times is simply not accurate. I have found over the years so many instances of well meaning and well educated folks wanting to apply modern aspects (life, philosophy, religion, psychology, etc.) onto pre-historic cultures without a shred of evidence, and I don't accept that. It is difficult enough to climb inside the mind of a "simple" human (by which I mean a mind unclouded with modern, first world BS) without adding such, forgive me, nonsense.
Religion itself is also closely tied to ritual, group ceremony, and divine command. These are all practices that help maintain tribal cohesion. Indeed, most ancient ethnic religions place more of an emphasis on how to practice the religion than what to believe, likely for this very reason.
If you are talking Institutional Religion, absolutely! I agree.
So let me ask: How big was a typical "tribe" in prehistoric times? How much more than "family" did such a tribe require to maintain cohesion? A tribe, then or later, consists of a group of familial related individuals. Inbreeding was a norm, and no doubt created some problems over time, so raids on neighboring tribes to acquire wives helped alleviate some of that. Neandertals didn't disappear by acts of war so much as acts of interbreeding with Cro Magnon. If you are of European stock, particularly Northern European stock, it is extremely likely you have Neandertal genes.
But all of prehistoric humanity didn't chase after some elusive "something."
And yet, in cave after cave after cave, including rock shelters, dating as much as 40 to 50 thousand years ago, family after family, tribe after tribe, went DEEP into the caves, not for shelter, not for necessity, and not often...but they did go there for 2 purposes, to paint the walls with animals that held meaning to them, and to have an experience that produced hallucinations / visions. Arguably I might suggest, maybe not this early but at some point probably well before historic times, that such ceremonies became rights of passage for boys into men. Women already have their physical "changes," rights of passage that usher girls into women, and this I speak of comes with my own paraphrase from the likes of Joseph Campbell, that it is not at all uncommon for "primitive" (I hate using that term in this context) cultures to do exactly that, conduct a ceremony to usher boys into men, though the ceremony differs widely from culture to culture.
Mysticism and spiritual philosophy came generations after the myths and rituals had already become habituated in ancient culture.
Agreed. But that is not to say that what "mysticism and spiritual philosophy" came about in pre-historic times passed without change into historic times.
These original myths shaped what later descendants would chase after, but a wide range of diversity grew out of these relatively similar starting conditions thanks to the butterfly effect.
I think here is where our thoughts on the matter begin to diverge.
I mean, compare the Aztecs to the Sumerians; these were very different religions, even if they share the same general concepts of mind-body dualism, polytheism, group ceremony, mythology, and divine command that come from evolution.
Not to sound like a smart aleck, but both cultures also prepared and ate food, and took a dump once a day. I don't think that has anything to do with "butterfly effect." That has to do with human tendency to interpretation, specifically interpreting the world around them.