To know a species, look at its fears. To know yourself, look at your fears. Fear in itself is not important, but fear stands there and points you in the direction of things that are important. Don't be afraid of your fears, they're not there to scare you; they're there to let you know that something is worth it.
She had just realized there were two things that prevent us from achieving our dreams: believing them to be impossible or seeing those dreams made possible by some sudden turn of the wheel of fortune, when you least expected it. For at that moment, all our fears suddenly surface: the fear of setting off along a road heading who knows where, the fear of a life full of new challenges, the fear of losing forever everything that is familiar.