This religious resurgence has taken many observers by surprise. In the middle years of the twentieth century, it was generally taken for granted that secularism was an irreversible trend and that faith would never again play a major part in world events. It was assumed that as human beings became more rational, they either would have no further need for religion or would be content to confine it to the immediately personal and private areas of their lives. But in the late 1970s, fundamentalists began to rebel against this secularist hegemony and started to wrest religion out of its marginal position and back to center stage. In this, at least, they have enjoyed remarkable success. Religion has once again become a force that no government can safely ignore. Fundamentalism has suffered defeats, but it is by no means quiescent. It is now an essential part of the modern scene and will certainly play an important role in the domestic and international affairs of the future. It is crucial, therefore, that we try to understand what this type of religiosity means, how and for what reasons it has developed, what it can tell us about our culture, and how best we should deal with it.