I was driven to Whipsnade one sunny morning. When we set out I did not believe that Jesus Christ is the son of God, and when we reached the zoo I did. Yet I had not exactly spent the journey in thought. Nor in great emotion. “Emotional” is perhaps the last word we can apply to some of the most important events. It was more like when a man, after a long sleep, still lying motionless in bed, becomes aware that he is now awake.