The map and the territory

It's better to have a map that doesn't agree with the territory than no map at all. You feel more secure, your health is better, and you have more friends. This is confirmed in many well-conducted studies.

Faith

Even though the United States has by far the world's most significant military power and even though they received help from several other countries, the Taliban became an overpowering opponent. The Taliban have pretty much nothing but their faith. Faith can move mountains. Doubt, on the other hand, makes us insecure and neurotic.