Visualizations are a bit of a woo-woo way of thinking. Yet why do so many people encourage you to do so? Simply put, it works. If you want to know where you want to go, visualization of where you will end up is actually pretty helpful. It allows your mind to know what it is working for. If you see yourself as successful you will have a better chance of finding that success.
Some people do struggle with visualizations thought that is often because they are stuck on what they think of it. I have been able to help several people who claim they cant visualize actually have very detailed idea’s of what it looks like when they arrive at their destination.