You might just think of analogies as being clever constructions, put together by smart people, to help you understand complex problems—but there's more to them than you might think.
In fact, they're a crucial part of being human; the way in which our (relatively!) simple bodies manage to understand the incredibly complex world around us; a crucial tool which actually shapes the way we think. This video goes some way to explaining why that's the case. Enjoy! [New Scientist]