This thread inspired a blog post:
Mind-Manual » The Root of All Fears
Taking risks like that is actually referring to taking emotional risks, rather than just probabilistic risks. And the real risk there is not knowing or being uncertain if you'll be able to handle it if you do not achieve your dream. But here's the thing, the real risk is in not trying, because then you automatically fail. You miss 100% of the shots you don't take, Wayne Gretzy