There’s a story of a group of college students who went to visit the home of John Wesley, founder of the Methodist church. They noticed there were indentions on the floor of his room where he knelt to pray each day. After the tour, the class loaded on their bus. When the teacher counted, there was one missing. He went back through the property looking for the student and found him kneeling in those imprints praying, “Do it again, Lord. Do it again!” The teacher quietly walked up, tapped the student on the shoulder, and said, "Billy, it's time to leave."
And Billy Graham got up from his knees and left to win a world to Christ.