Question

how does the brain dream?

Answer 1

Answer:

The whole brain is active during dreams, from the brain stem to the cortex. Most dreams occur during REM (rapid eye movement) sleep. This is part of the sleep-wake cycle and is controlled by the reticular activating system whose circuits run from the brain stem through the thalamus to the cortex.

Answer 2

Explanation:

However, the cortex still sends our body signals and since our muscles cannot move, we move in our dreams. Since the sensory input from the outside world is at a minimum, the mind uses memory fragments in our brain to create the images, thoughts, and narratives that we commonly call “dreaming.”