To interpenetrate an entire human life with divine life, it is not enough to kneel once a year in front of the crib and let oneself be moved by the charm of the holy night. One needs to live one's entire life in daily communication with God, to listen to the words that God has spoken and that have been transmitted to us, and to follow these words.
It is not through the way in which someone speaks about God that I can see whether that person has passed through the crucible of Divine Love, but through the way the person speaks to me about things here on earth.