Whatever your dreams consist of, you’ve probably wondered where they come from and what they might be trying to tell you. Psychologists, too, have long studied the origin and purpose of dreams. Mark Blagrove, PhD, of Swansea University, talks about what we know – and don’t know – about why we dream; the relationship between our dreams and what’s happening in our waking life; why some dreams seem so common – like being unprepared for class or flying; why some people have particularly vivid and memorable dreams while others hardly dream at all; whether animals dream; and whether our dreams are entirely out of our conscious control or whether it’s possible to influence their content. For transcripts, links and more information, please visit the Speaking of Psychology Homepage.