The waltz can be sad and at the same time uplifting. You have to see life from both sides and the waltz encapsulates that. If you're in my audience you give yourself to me and the waltz will grab you.
When I was growing up it was 'Communists'. Now it's 'Terrorists'. So you always have to have somebody to fight and be afraid of so the war machine can build more bombs guns and bullets and everything.