Richard Wagner in Bayreuth by Friedrich Nietzsche

Wagner concentrated upon life, past and present, the light of an intelligence strong enough to embrace the most distant regions in its rays. That is why he is a simplifier of the universe; for the simplification of the universe is only possible to him whose eye has been able to master the immensity and wildness of an apparent chaos, and to relate and unite those things which before had lain hopelessly asunder. Wagner did this by discovering a connection between two objects which seemed to exist apart from each other as though in separate spheres -- that between music and life, and similarly between music and the drama. Not that he invented or was the first to create this relationship, for they must always have existed and have been noticeable to all; but, as is usually the case with a great problem, it is like a precious stone which thousands stumble over before one finally picks it up.

Wagner asked himself the meaning of the fact that an art such as music should have become so very important a feature of the lives of modern men. It is not necessary to think meanly of life in order to suspect a riddle behind this question. On the contrary, when all the great forces of existence are duly considered, and struggling life is regarded as striving mightily after conscious freedom and independence of thought, only then does music seem to be a riddle in this world.