Sometimes the things that have brought us thus far can only take us so far and not farther. We would need to access higher wisdom to go farther. This is why periodically assessing and evaluating our lives is important. You do not want to be surprised like I was.
This goes to say that clarity a lot of times comes with the motion. The rough idea you have is the best starting point. As you act on the little, the next steps to take start to show up.