Absolute faith can blind you to the consequences of the actions you allow. It can tell you it's okay to drop bombs on another country, or that it's okay to hate a group of people such as homosexuals.
In February of this year I returned to China to research my next book. The authorities know about the novels of mine that have been published in the west, including the latest one, Beijing Coma, about a student shot in Tiananmen Square, but so far have allowed me to return.