Wikipedia describes dreams as successions of images, emotions and ideas that occur during sleep. What are dreams really? Can we control them? Do you remember all of your dreams when you wake up? Why do some dreams seem so vivid? Some feel so familiar and realistic, but when you wake up, their intuitive significance may start to rapidly fade. And why do some people have nightmares? Are they primarily rooted in stress and anxiety, or are there deeper reasons behind them? In the video below, Sadhg...