Be honest about the areas where real improvements would increase your effectiveness and note them down. Think about the jobs you've had in the past. This is the opportunity to envision the future, and to consider everything you could have, do and be. It is an ongoing process and you may return to this stage many times, but it is important to begin with all the options you can think of by opening your mind to possibility and imagination. When I run career development workshops I encourage people to think more broadly than their jobs.
Work is just one element of our lives and is intrinsically linked to so many other aspects.
Imagine you can take a year off from your current job on full pay. You've won the lottery and money is no object. You can't fail. These questions can uncover possibilities that people had never thought of or had relegated to the backs of their minds. They can also unearth surprising discoveries.