…lines are more blurred. The external and internal, in reality, play-off each other. When you change your external environment, it alters your psychology, which then can loop back to continuing to enhance the environment in a virtuous upward cycle.
The hardest thing you will give up is the false idea of what you think you are. You have no clue what you are. More importantly, there is no “you” that is fixed and permanent, only the individualistic idea you have of yourself.