Javascript code explain closure by movie inception.

inception.js

/**
 * Platform [email protected] Arch Linux
 * Date 2013-07-12 09:43:15
 * @author [email protected] (cattail)
 *
 * @fileoverview Javascript code explain closure by movie inception.
 * dream - function
 * everything in dream including secret - scope
 * people inside dream - executable code
 */

(function () {
  var dream = function () {
    var experience = Math.random();
    console.log(experience);
  };
  dream();
}());
// extend variable life circle 
(function () {
  var secret;
  var dream = function () {
    secret = 'Love X';
    console.log(secret);
  };
  dream();
  // another people
  console.log(secret);
}());
// privacy
(function () {
  var dream = (function () {
    var secret;
    return function () {
      secret = 'Love X';
      console.log(secret);
    };
  }());
  dream();
}());
// how to break
(function () {
  var thief = {};

  var architect = function () {
    var buildings = ['bridge', 'river', 'building'];
    var projections = {};
    // much more
    return function dream () {
    // people 1
      projections.secret = 'Love X';
      // thief
      thief.steal = function () {
        console.log(projections.secret);
      };
      thief.inception = function (secret) {
        projections.secret = secret;
      };
    };
  };
  var dream = architect();

  dream(); // 'Love X'
  thief.steal();
  thief.inception('Love Y');
  thief.steal();
}());