The title of this updated edition of Musk's 1992 Passionate Believing was changed at the publisher's behest. It reflects the events of 9/11 and includes two new chapters on the histories of the Taliban and Osama bin Laden. In what he considers to be his most important book, Musk tries to help westerners enter into the Islamic fundamentalist mindset and sees an irony in the fact that it is maybe closer to the Biblical worldview than much of western secular humanism. He looks at the influence of some of the most important Muslim thinkers from al-Afghani to Mawdudi, Qutb and Khomeini, reflecting on the anger that many of them felt towards the West as a result of imperialism and globalization. He sees in Islamism and the Islamic doctrine of tawhid (God's oneness) an implicit critique of the shortcomings of the western secular worldview and a challenge to Christians to become more public about their faith. Christianity, however, is not to be equated with Islam. Quoting Lesslie Newbigin he points out that whilst Muhammad chose the way of power in conquering Mecca, Christ chose to suffer and die in Jerusalem. Thus there is ahead a struggle for Christians to witness, with its nuance of ‘martyrdom’", as they seek to put Christ back into the centre of life."