What good is music? None ... and that is the point. To the world and its states and armies and factories and Leaders, music says, 'You are irrelevant'; and, arrogant and gentle as a god, to the suffering man it says only, 'Listen.' For being saved is not the point. Music saves nothing. Merciful, uncaring, it denies and breaks down all the shelters, the houses men build for themselves, that they may see the sky.
Ursula K. Le GuinThere was a wall. It did not look important. It was built of uncut rocks roughly mortared. An adult could look right over it, and even a child could climb it. Where it crossed the roadway, instead of having a gate it degenerated into mere geometry, a line, an idea of boundary. But the idea was real. It was important. For seven generations there had been nothing in the world more important than that wall. Like all walls it was ambiguous, two-faced. What was inside it and what was outside it depended upon which side of it you were on.
Ursula K. Le Guin