I'd like to share something else I read in St. Teresa's Meditations of the Song of Songs. She gave the following.
In spite of all the wisdom of the Blessed Virgin, our Lady, she asked the angel: How can this be? But after he answered, The Holy Spirit will come upon you; the power of the Most High will overshadow you, she engaged in no further discussion. With great faith and wisdom, she understood at once that if these two intervened, there was nothing more to know or doubt. She did not act as do some learned men, for they want to be so rational about things and so precise in their understanding that it doesn't seem anyone else but they with their learning can understand the grandeurs of God. If only they would learn something from the humility of the most Blessed Virgin!