The ability to control our dreams is a skill that more of us are seeking to acquire for sheer pleasure. But if taken seriously, scientists believe it could unlock new secrets of the mind.
Michelle Carr is frequently plagued by tidal waves in her dreams. What should be a terrifying nightmare, however, can quickly turn into a whimsical adventure – thanks to her ability to control her dreams. She can transform herself into a dolphin and swim into the water. Once, she transformed the wave itself, turning it into a giant snail with a huge shell. “It came right up to me – it was a really beautiful moment.”
There’s a thriving online community of people who are now trying to learn how to lucid dream. (A single subreddit devoted to the phenomenon has more than 400,000 members.) Many are simply looking for entertainment. “It’s just so exciting and unbelievable to be in a lucid dream and to witness your mind creating this completely vivid simulation,” says Carr, who is a sleep researcher at the University of Rochester in New York state. Others hope that exercising skills in their dreams will increase their real-life abilities. “A lot of elite athletes use lucid dreams to practise their sport.”
And there are more profound reasons to exploit this sleep state, besides personal improvement. By identifying the brain activity that gives rise to the heightened awareness and sense of agency in lucid dreams, neuroscientists and psychologists hope to answer fundamental questions about the nature of human consciousness, including our apparently unique capacity for self-awareness. “More and more researchers, from many different fields, have started to incorporate lucid dreams in their research,” says Carr.
This interest in lucid dreaming has been growing in fits and starts for more than a century. Despite his fascination with the interaction between the conscious and subconscious minds, Sigmund Freud barely mentioned lucid dreams in his writings. Instead, it was an English aristocrat and writer, Mary Arnold-Forster, who provided one of the earliest and most detailed descriptions in the English language in her book Studies in Dreams.
Published in 1921, the book offered countless colourful escapades in the dreamscape, including charming descriptions of her attempts to fly. “A slight paddling motion by my hands increases the pace of the flight and is used either to enable me to reach a greater height, or else for the purpose of steering, especially through any narrow place, such as through a doorway or window,” she wrote.
Based on her experiences, Arnold-Forster proposed that humans have a “dual consciousness”. One of these, the “primary self”, allows us to analyse our circumstances and to apply logic to what we are experiencing – but it is typically inactive during sleep, leaving us with a dream consciousness that cannot reflect on its own state. In lucid dreams, however, the primary self “wakes up”, bringing with it “memories, knowledge of facts, and trains of reasoning”, as well as the awareness that one is asleep.