It fits in precisely as follows: Once it's realized that you are not the body/mind (enlightenment), the structures of the ego-mind will still largely remain intact. Your job then, for the rest of your life, is to become more and more conscious of the ego-mind structures and disassemble them one by one. That is the bulk of spiritual work, and that is the deepest form of personal development that exists. So for example, if you still have confidence issues after enlightenment, you would penetrate with your awareness the structures of the ego-mind that are fueling this dynamic, and thereby eliminate them. So personal development is the process of shedding every last vestige of self, until there is no longer anything that you are attached to as yourself, including your life, your body, your work, your possessions, your relationships, and your ideas. If you do all that, you will be unimaginably happy and your life will be complete.