when you come across the details of your life, is there some sort of general pattern where you can harvest a theme and direction you are bound to take? having put together pieces of the missing puzzle gives you the ability to somewhat make an intelligent guess as to what your next course of action would be, in the same way that you can infer which part of the picture is still missing based on what you already have.
the problem is, that the picture is not always really clear. for all you know, you were handed an abstract salvador dali-esque puzzle to complete. for all you know, it could only be solved in the third dimension when you've only been looking at two. for all you know, there might not even be an answer... only what you choose to make out of those missing pieces.