There is a wondeful part of the book "The Magician's Nephew" where Strawberry, the horse that pulls the hansom, gets turned into a flying horse. Let me share the excerpt here:
"My dear," said Aslan to the Horse, "would you like to be a winged horse?"
You should have seen how the Horse shook its mane and how its nostrils widened, and the little tap it gave the ground with one back hoof. Clearly it would very much like to be a winged horse. But it only said:
"If you wish Aslan--if you really mean--I don't know why it should be me--I'm not a very clever horse."
"Be winged. Be the father of all flying horses," roared Aslan in a voice that shook the ground. "Your name is Fledge."
Can you see how Aslan is offering Fledge this great blessing that Fledge wants more than anything, but Fledge just can't seem to believe that he is worthy of it? He sees himself as a cart horse and it is hard to imagine himself as anything else.
Aren't we a lot like Fledge sometimes. Maybe someone told us through a grade or a comment that we weren't good at math and we believed them. Maybe we think that we are a fat person, or a poor person, or not popular, or beautiful, or spiritual, and then God offers us an incredible blessing and we say, "I don't know why it should be me--I'm not a very [insert negative belief] person." Why shouldn't it be you?
I love what Marianne Williamson had to say about this:
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 does not serve the world. There is nothing enlightened about shrinking so that other people won't feel insecure around you. We are all meant to shine, as children 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.
So the next time you think that you're not worthy of some great blessing in your life, and your feeling like Stawberry. Stop rationalizing yourself out of the blessing, and simply answer "yes" and become what God wants you to be.