There is a way of living in the world that is not here, although it seems to be. You do not change appearance, though you smile more frequently. Your forehead is serene; your eyes are quiet and the ones who walk the world as you do recognize thier own. Yet those who have not yet perceived the way will recognize you also, and believe that you are like them, as you were before.
Our deepest fear is not that we are inadequate; our deepest fear is that we are powerful beyond measure. It is our light, not our darkness, that most frightens us.
We ask ourselves, who am I to be brilliant, gorgeous, talented, fabulous? Actually, who are you not to be? You are a child of God. Your playing small doesn't serve the world. There's nothing enlightened about shrinking so that other people won't feel insecure around you.
We are all meant to shine, as children we do. We were born to make manifest the glory of God that is within us. It's not just in some of us; it's in everyone. And as we let our own light shine, we unconsciously give other people permission to do the same. As we are liberated from our own fear, our presence automatically liberates others.
Source: A Return to Love: Reflections on the Principles of A Course in Miracles