It has often been said that the most important questions anyone could ever ask are: ‘Who am I?’, ‘Why am I here?’ and ‘Where am I going?’ Dealing as they do with the issues of a person’s identity, meaning and destiny, they are obviously of great significance, but even these are secondary when put alongside one which is both fundamental and inescapable: ‘Does God exist?’ This is the question, and every debate about human life and death, and about the universe in which humanity lives and dies,