If dreams were movies, they wouldn’t make a dime. They’re often banal, frequently fleeting and they’re screened for an audience of just one. As for the story line? You’re in a supermarket, only it’s also Yankee Stadium, shopping with your second-grade teacher until she turns into Ruth Bader Ginsburg. Then you both shoot a bear in the cereal aisle. Somebody call rewrite.
But dreams are vastly more complex than that, and if you’ve got a theory that explains them, have at it. The ancient Egyptians thought of dreams as simply a different form of seeing, with trained dreamers serving as seers to help plan battles and make state decisions. The ancient Greeks and Romans believed that dreams were equal parts predictions of future events and visitations by the dead.