In many things, God has ministered to people purposes greater than their hope; purposes greater than their family history; and those who were able to see these purposes were yielded men and women.
The verse shows us that though Mary had been overwhelmed by the visitation of the angel and couldn't see how the things the angel said would come, she responded with grace and faith. This is the way yielded men respond to divine purpose.
This is why when you're yielded to God, it's not only about having faith in the word of God but trusting the God, who promised. You will see the great purposes of God, the day you learn to yield to him.
My Loving Father, I thank you because you have taught me to be yielded to your will. Reveal to me your purposes that I may be even more yielded. AMEN