The situations, activities, and individuals that frighten us remain static. Their relative intensity does not change. Fear, on the other hand, self-magnifies. It is when you are afraid and envisioning all that might go wrong that the energy underlying your fear grows. A tiny flicker of anxiety can easily develop into a terror that manifests itself physically and eventually paralyzes you into inaction.
Read more at Daily Om: DailyOM – Walking through Your Fear.