The object of life is not happiness, but to serve God or the Grail. All of the Grail quests are to serve God. If one understands this and drops his idiotic notion that the meaning of life is personal happiness, then one will find that elusive quality immediately at hand.
Religious extremists want to show us that the only possibility is for us to kill each other, so September 11 is not only heinous murder, it is also global performance. It is also putting an idea into the world, an idea of destruction.