Psychologists are other "scientists" will never come to an even close meaning of why we dream until they radically change their understanding of reality to something close to reality.
The metaphysical is ignored in modern physics.
If we can't see it, we don't believe it.
And so, they ignore the large part and context of what it is to be human.
They still believe that thoughts happen in the brain.
You can go to any guru in India and he will set them straight on this.
So, of course they can't explain anything, their starting point is so far off as to make everything that comes after, irrelevant.
Well, this is actually not true, there have been several things that were believed to exist without actually seeing them.
what is that large part specifically?
so the brain scans that shows our brain's activity when we think are wrong?
Where do thoughts happen according to you?
so far off what?
About the guru in India I would have to see one in person to really see what they can do, I know in poor countries thanks to the people not having enough information, it is easy for charlatans to deceive people and take their money away from them.