Maybe imagination isn’t a force in the way gravity or electricity is, but it is a kind of energy that lives inside the brain, shaping our thoughts and our actions. When you picture something, your neurons fire, your body reacts, and that can change reality in a very real, measurable way. So while it’s not a force that you can point to on a physics textbook, it’s a powerful, invisible current that can guide what we build, what we feel, and even what we ultimately create in the world.