When you walk to the edge of all the light you have and take that first step into the darkness of the unknown, you must believe that one of two things will happen. There will be something solid for you to stand upon or you will be taught to fly.
In school we learn that mistakes are bad, and we are punished for making them. Yet, if you look at the way humans are designed to learn, we learn by making mistakes. We learn to walk by falling down. If we never fell down, we would never walk.