Imagine, just for one moment, that you’re flying. What can you see? How high up are you? Can you feel the rush of wind in your face? Keep these thoughts in mind while you listen to this week's podcast.Your imagination is a strange old thing, with some people experiencing vivid senses while some struggle to picture anything at all. In this episode, we speak to Jim Davies, whose book, Imagination: The Science of Your Mind's Greatest Power (£21.99, Pegasus), sheds light on this mysterious function of the brain.As you can imagine, we go deep into the neuroscience of conjuring up mental images, but we also find out why your memory doesn’t need to be perfect, the joys of playing video games after a bad day, the benefits of imaginary friends, and, rather bizarrely, how to make a better door.If you have a burning science question you want an expert to answer, send them to us on twitter at @sciencefocus, and we may answer them in a future episode.Subscribe to the Science Focus Podcast on these services: Acast, iTunes, Stitcher, RSS, OvercastLet us know what you think of the episode with a review or a comment wherever you listen to your podcasts.Listen to more episodes of the Science Focus Podcast:Dean Burnett: What’s going on in the teenage brain?Gordon Wallace: Is an implantable electronic device the future of medicine?Dr Guy Leschziner: What is your brain doing while you sleep?Gustav Kuhn: Do you believe in magic?Helen Russell: What does it mean to be happy?Richard Wiseman: The mindset behind the Moon landing Hosted on Acast. See acast.com/privacy for more information.