Mary—a young, poor virgin of no particular importance or pedigree—is selected by God to give birth to the messiah. And when this messiah comes, he doesn’t come through any of the expected channels. He is not born to wealth or a family the country would perceive as honorable or important.
And, yet, in spite of the unlikeliness and sheer impossibility, Mary says yes to the glory.
But she isn’t responsible for accomplishing anything. She is simply given the gift of allowing God to keep his promises within her flesh.
In this, our hearts can learn that our role isn’t to execute the glorious impossible; our role is simply to look for it, opening our lives to God manifesting his glory in us.