It is a good viewpoint to see the world as a dream. When you have something like a nightmare, you will wake up and tell yourself that it was only a dream. It is said that the world we live in is not a bit different from this.
Miyamoto Musashi, Yamamoto Tsunetomo, Inazo Nitobe (2010). “Honor: Samurai Philosophy of Life - The Essential Samurai Collection; The Book of Five Rings, Hagakure: The Way of the Samurai, Bushido: The Soul of Japan.”, p.82, Bottom of the Hill
