We close our eyes at night and dream. Sometimes beautifully, sometimes fitfully, sometimes frighteningly. But why?
The ancients looked for omens. Sigmund Freud saw clues from our past. Some researchers now say dreams help us brace for the future. Ben Franklin advised a light supper, clean sheets, fresh air, and as little dreaming as possible — to avoid painful dreams.
And what about nightmares? Can we, should we, rewrite them? We spend a lot of our lives dreaming. What’s it all about?
