As those who have read my book, Confessions of a Grad School Dropout, know, much of it came from a personal place of suffering - when I realized that my external abilities were much greater than my inner desires. When I wanted something based on my ego and due to being an overachiever, and not due to actual passion, I began to suffer.
Once, I had far more than my heart actually wanted. Another kind of suffering comes from an ego wanting more than one actually has. Without knowing one's true goals and desires, suffering has no end, as one constantly changes their perceived goals at an expense of their true ones. An intrapersonal knowing, or fully knowing one's self, is the one way to avoid this. We must dig deep, and be completely honest with our whole selves - our hates, weaknesses, traumas in order to work on them and become the best version of ourselves. And with this, comes the best version of our professional selves.