It's a totally self-contained growth process where you simply take advantage of what you already aspire to in the future and use that as the starting point. Then you identify everything that stands in the way of that vision of the future, and by allowing the opposition to be stated, you legitimize negativity.
A lot of people try to bypass negativity by not looking at the obstacles they face. But the obstacles to your goal are unique to your vision and extremely useful. They're there for you to use as the raw material for creating solutions and growing as you move toward your goal.