What is the most beautiful dance and the loneliest dance in the world?

The most beautiful dance in the world is ballet, and the loneliest dance in the world is peacock dance, because I think the most beautiful dance is ballet, because it gives me a particularly good feeling, like a dancing elf, bringing joy to people. I think peacock is the loneliest dance because only a few people can learn peacock dance. Although he looks beautiful, it is difficult to practice.