"...We dream of traveling through the universe - but is not the universe within ourselves? The depths of our spirit are unknown to us - the mysterious way leads inwards. Eternity with its worlds - the past and future - is in ourselves or nowhere. The external world is the world of shadows - it throws its shadow into the realm of light. At present this realm certainly seems to us so dark inside, lonely. shapeless. But how entirely different it will seem to us - when this gloom is past, and the body of shadows has moved away. We will experience greater enjoyment than ever, for our spirit has been deprived."