"Preoccupation is in fact a greater stumbling block than occupation. We are so afraid of open spaces and empty places that we occupy them with our minds even before we are there. Our worries and concerns are expressions of our inability to leave unresolved questions unresolved and open-ended situations open-ended. They make us grab any possible solution and answer that seems to fit the occasion. They reveal our intolerance of the incomprehensibility of people and events and make us look for labels or classifications to fill the emptiness with self-created illusions."