Both points @thorninmud brings up is correct.
I often sleep with my eyes open. That makes for some FUNNY dreams! When I was a teen, I used to doze off on the sofa. When my eyes came open, Stuff in the room would join in. I’d be having a dream about being able to fly, and cartoons would be on tv, and then I’d be flying around with a group of smurfs following me, or my mom would walk through the room and I’d see that then a monster would morph out of a wall and eat her and I’d jump up with a sword in my hand and cut it open to rescue her. (In happy stories the moster always swallows the victim whole so they can be rescued.)
I have had precognative dreams. They are very rare. It has been a long time. Most people don’t believe in that, but I took to telling my dreams regularly, and a couple of remarkably specific situations occurred which freaked out my family.
The fact is, the brain is a vast and complicated place. There are differences in brain function which elude the most intellectual people. Some people have broken minds. Some people have exceptional minds. Some people have suffered brain injuries that resulted in portions of the brain was completely gone, and somehow, function which should have been gone,wasn’t, or was regained.
People believe all sorts of things about dreams, and that’s okay. It’s the believing which leads human beings down the road of discovery. What we should not do, is live in fear of what our dreams might mean. Look at dreams not like a set of instructions, but as clues, and as entertainment. When your dreams are trying to work through a problem, it comes up with possibilities. POSSIBILITIES, not neccessarily solutions.
Think of your dreams as a friend; sometimes fun, sometimes mysterious, sometimes wrong ,sometimes right, sometimes messing with entirely the wrong person (yes vote that, right?)LOL.
Sweet dreams!