Before going anywhere, it's a lot easier to know where you're going.
To change a program, it's easier to know what you want to change. It's sort of like getting ready for an event. The dress rehearsal. You put on the outfit and you do the pretend version of a special thing. Outfit works great. Awesome. You know what you will look like on that future day. You are doing some long term planning and have stepped into a version of reality to practice for the real thing. In a sense you are creating a program. You know that an event is happening and before it does you do some planning and preparing for it. You get yourself used to doing this new special thing so that it goes right for when it happens later.