Throughout my life I have been, at one time or another, a believer in God, an agnostic and an atheist. I am amazed at the strength of other people's faith, especially at the faith of people who have taken up a new religion and fervently hold on to and defend their new beliefs for the rest of their lives. My question is how are people so convinced that their chosen religion is right over all the others. It seems impossible that a person can believe in a religion simply because he or she wants to - there must be some logic behind their reasoning - but I cannot understand it. Can you explain or is this one for psychologists?