There is a place in everyone that can carry the light. God has made it this way. God has not only given us the chance to carry the light, but has made it possible for us to kindle and strengthen the light in one another, passing the light along. This way God's light will shine forever in this world.
Every one of us has a "good work" to do in life, which accomplishes something needed in the world while completing something in us. When it is finished a new work emerges which will help us to make green a desert place, as well as to scale another mountain in ourselves. The work we do in the world, when it is a true vocation, always corresponds in some mysterious way to the work that goes on within us.