@futilevoice Said
Perhaps we should stop using the terms open or closed. Our brains are constantly processing info all the time whether we are conscious of it or not. So in that case no ones mind is closed.
The terms stretched, aware, grown, may be more applicable. Once someone's mind has been stretched beyond it's former limits where it can contemplate new ideas without being biased then that person can be considered to have an open mind. Granted, not many people are unbiased especially concerning religion.
I have to admit I don't use them myself very often, because I believe they are too "black and white", and not something which can be applied with any accuracy.
Now that second paragraph makes much more sense, though I am not saying that I agree with it.
As one who has studied Psychology informally for many decades, including people with learning difficulties, and who is now studying it formally with the aim of getting a degree, two things have become very obvious to me. I am not surprised to find that nothing I am learning on my Open University module is new to me, I have already been told by more than one Psychologist that I have a deep insight into the human mind, possibly because of my own struggles in that direction.
The first of the things that have come to mind is that in fact the human mind has more capacity than any of us is capable of filling, even those with learning difficulties. The only exceptions to that are people with what are really physical problem with their brains which prevent them from learning properly.
The second of those is that most limitations to learning are caused by environmental factors, usually in the home, and often encountered in the first 5 years of life.
That is because the vast majority of learning problems are actually a form of mental block brought on either by too little, or too much confidence, which have been heavily influenced by their home environment in those early years.
What that means in the end is that the reason most people fail to learn is that they don't think they can. That is a form of mental block I myself suffered from until after I left school and only overcame in certain areas, due to a fascination with them. I was later able to expand the number of those areas by learning to find areas of interest in them, though there areas till some areas I am completely unable to learn in, even if I want to. It's not that many years ago that I would never have dreamed of attempting to go for a degree in any area, not even Psychology. It is only thanks to Self Esteem therapy that I have been able to do that.
The truth is that, whether we admit it to ourselves or not, we all choose what we learn and who we learn it from, applying criteria which have been set out in those early years by our environment, be that parents other relatives or, less likely at that age, our peer group.
We may close our mind to things because of parental disapproval, whether real or imagined, or any of a thousand other factors that control how we learn. (Incidentally this comes under the heading of Behavioural Psychology). Sometimes we choose not to step out of our comfort zone, which learning almost invariably forces us to do to some degree. These are the two most common reasons.
There are of course also those who are so arrogant that they can't envision being wrong, and those so downtrodden that they can't envision being right and a myriad of shades in between.
You might find anything about Behavioural Psychology interesting to read, though it is not the only school of Psychological thought by any means, and most have at least some truth in them. None, I am convinced, have all of it.
I was fortunate that even early in life pleasing my adoptive father was not a strong goal with me, because I had already learned it was impossible to achieve whichever way I went. Believe it or not I am grateful to him for that, lack of trust in any "expert" has stood me in good stead ever since.