I fully agree that all events must have a cause of some sort.
Well, that's sort of progress... maybe...
It is the nature of the cause of certain events in our brain which is in question.
No, it isn't. Please try to concentrate! Our consciousness and free will is generated by
something. You are claiming the brain can't do it and so it must be done elsewhere.
What you have not done is explained why elsewhere (the non-material) makes a difference. In order to do that, you need to explain how free will and consciousness is produced in this other realm and hence why it couldn't be produced by the material.
The spiritual cause I have postulated allows the spiritual will of our conscious soul to interact and enable the control we perceive in our thoughts, words and actions.
As I said, you've only moved the problem. It is now: how does the "spiritual will of our conscious soul" work and why does it need to be spiritual and not material?
To me this provides a more logical explanation of our reality than the illusion of free will suggested by those who have no spiritual beliefs.
You have spectacularly failed to produce any hint of logic at all.