Mind body dualism

Inspired by Dr Adequate's post on unsolved questions on biology ...1. How does thought originate?2. How do you recall something from your memory?Probably these two questions are similar. But I think they are different. May be their mechanism of origin may be similar.If you believe in mind body dualism, then, they may have an easy answer. But is the mind different from brain? Or is it a 'metaphor' used to signify the collective out put of the brain?

I thought I agree with you.
But think of the 'memorized stuff.'
The structure of a cell should remain the structure of a cell as and how I memorised. No bits and pieces are added or omitted.I learned the cell long, long ago. Now if someone asks me to draw it, I will probably omit some of the organelles and stuff. But why does this happen? I learned it. And I have forgotten because I did not repeatedly recall what I learned?Recalling memory can alter it, you say.
Not recalling memory also alters it. No?
If I revise the structure of the cell, I can do an excellent job. On this occasion, recollection will strengthen my memory.

I was curious about how thought and memory originate. Not that anyone will have an answer to it. But that it is something I sometimes wonder.Sometimes, for no apparent reason, we will start thinking of something.
Similarly, sometimes for no apparent reason we can recall a distant memory.For both thought and memory, sometimes there is a trigger. Sometimes there's none. And it is those times when there is no apparent trigger that puzzles me. Yeah.
I submitted my response before I read your comment. Edited by Europa, : No reason given.