When you sleep how does your mind make it seem real?

Answer 1

Your brain does not know the difference between what it sees and what it remembers. The same neural patterns fire both times.

You actually ARE experiencing it with the standard, realistic capabilities of your brain even though it's a dream.

Answer 2

The same way it makes everything else seem real. If people didn't rest they would become mental, start losing faculties like memory and such. So the hormones squish out some drousy juice that feels a little like drugs and out you go. An important truth that this question brings out is that it is not half as necessary to get sound sleep as people think as long as you rest. The funny part is that as soon as you accept this when lying in bed, and simply begin to relax in order to rest, you usually will quickly lose consciousness. The part I never get over is the extent to which people are totally asleep when they drive cars in traffic. I have pulled up alongside friends without saying anything to them, just watched, and honestly they were completely zonked out.

Answer 3

Short answer...

Everything you perceive is through your mind. When you sleep you cut off all outside stimulus, but your mind is still capable of perceiving things. Your dreams are, in some ways, very similar to your imagination, but without anything else to distract you from your imaginary images and sounds, they take the forefront and seem the "most real" of anything you are experiencing since they are the ONLY thing you are experiencing at the time.