The father of four children told a wonderful story about a particular Christmas morning. They had a rule, like many families, that none of the children could go down to see the gifts until the rest of the family was awake and they could all go together.

The year David was seven, he came bounding into their bedroom at 4:30 a.m., his face glowing with excitement, his mouth running at about ninety miles an hour. "Daddy! Mother! Come quick! I saw it!"

As they w…