There must have been long hours when each of them were lost in their own private thoughts. It would be years before they saw home again, but they didn't know that. From Bethlehem they would travel to Egypt, but they didn't know that. They would see miracles before it was over, but they just worried about surviving this journey. Before it was over Mary would actually change God's diaper, but at the time all Mary could think about was her own sore behind.
Life is like that.
The difference between adventure and misery is only an attitude. I wish we could see our own life journeys from God's viewpoint. I still love to travel. Sometimes the only way I can get my mind off things is to travel. When I get behind the wheel of the car I can feel the stress melt away.