I don't see what all this has got to do with what I am saying. I agree that Nature is remarkable and that is the point.
By crediting the brain with certain remarkable qualities you are only acknowledging that Nature is Intelligent. There is a obvious Intelligence built into it which is what makes not just our brain and body but the whole of the eco system so unified and coordinated and regulated.
The brain is just a piece of flesh that begins to rot the moment life goes away. So what is it that makes the brain and the body so full of life and intelligence? That is what spirituality addresses. It is not about religious practices or superstitious beliefs.
I came into this thread with the video of the soul that is seen leaving the body of the accident victim (I have no problem in assuming it is genuine and no reason to believe that it is fake). I consider that event as a very normal and natural part of life. And that does not in any way conflict with your observation about the functioning of the brain.
The built in tendency of the brain to try to make sense of anything it has to contend with, such as with my hearing I have tried to convey to you, the brain by entering its own version of an an amalgam of previous experience then passes it on to me as a realistic sound, but I'm still aware of how the sound output of these aids to my hearing doesn't alter.
Equally you think that these spirits, or however you wish to term them, are partly an amalgam of your previous experiences, education, asserted religious ideas, all mixed up with, I suggest, a modicum of wishful thinking plus this well known tendency of our brains to use these things in a way that it does its best effort to makes some sense of the way things work, all without necessarily basing all of its estimations on factual information.
Some of us seem to warm to the idea of the supernatural, some are more gullible than others on almost any subject you might like to chose and there are those of us like myself that like to be, as we think, more careful about accepting things on the say so of others, offered, without a sensible way of underlining some of the truth in their words.
It always builds the confidence I have in the ideas hear suggested by others when I hear things like I'm not sure about that but I'm working on it, or I don't know, beats ideas proffered from authority or assertion any day.
Kind regards ippy.
P. S. Where's the good weather gone that I asked you for the other day? We've had to turn on the heating in the house and the trees are loosing their leaves for winter in the brisk wind.