At night, as they read and reminisce and sometimes just gaze at one another, the Grahams' conversation often turns to what they believe awaits them beyond the grave. "I think about heaven a great deal, I think about the failures in my life in the past, but know that they have been covered by the blood of Christ, and that gives me a great sense of confidence," says Graham. "I have a certainty about eternity that is a wonderful thing, and I thank God for giving me that certainty. I do not fear death. I may fear a little bit about the process, but not death itself, because I think the moment that my spirit leaves this body, I will be in the presence of the Lord."In the twilight, Billy Graham shares what he's learned in reflecting on politics and Scripture, old age and death, mysteries and moderation.