Fear can be a powerful tool. At times, it can be logical (nobody likes falling down stairs). Other times, it simply prevents us from moving forward.
I'd like to say that I'm easily embracing every new challenge that presents itself. Unfortunately, that is simply not honest. Rather, many of my steps into the unknown have been taken tentatively with an eye toward the comfort of the past. However, just like riding down a long set of stairs, the key to overcoming fear (and successfully moving forward) is to focus on the challenge ahead and forget what lies behind.