All that you positively know is contained in your own experience; all that you ever will know must pass through the gateway of experience, and so become part of yourself. Your own thoughts, desires, and aspirations comprise your world, and, to you, all that there is in the universe of beauty, and joy, and bliss, or  ugliness, and sorrow, and pain, is contained within yourself. By your own thoughts you make or mar your life, your world, your universe. As you build within by the power of thought, so will your outward life and circumstances shape themselves accordingly. Whatsoever you harbor in the inmost chambers of your heart will, sooner or later, by the inevitable law of reaction, shape itself in your outward life.