If this world offered to one person all it possesses, even then the soul would not be satisfied because its satisfaction is in its higher aspiration, and it is this higher aspiration which leads to God. The question: "Has man an aspiration because it is his nature, but in the end of the journey he may perhaps not find anything?" may be answered: "There is no question which has no answer, and there is no desire the object of which is lacking." There is appetite, and there is food; there is thirst, and there is water; there is sight, and there is something to be seen. So there is aspiration, and there is God. Man knows not what is not. There is no such thing which one knows and which does not exist. For one cannot know what does not exist; something must exist first to enable one to know it.