Conan's dream: describe a great dream, or use an empty happiness as a metaphor. Metaphor is a dream.
There are dreams in the floating world, and people will eventually wake up, but Conan: Most people who say this have a certain understanding of the floating world of life, which is quite Taoist. It means that a person's life is actually very short, just like a dream. People die, wake up from their dreams, but they are empty. Such people don't value the false reputation, but they are easy to fall into nihilism and passively avoid the world.