Music

"The aim and final reason of all music should be none else but the glory of God and refreshing the soul. Where this is not observed there will be no music, but only a devilish hubbub." - Johann Sebastian Bach

>>5
Thats the world you believe in. Reality is always more complex than models. The universe is not the "Everything that exists" but an inner worldview that people have about their outermost surroundings.
Its just a layer of reality. We live in a world we think is the only world that exists, as people in antiquity thought the Earth was the center of entire universe.