One Dream Among the Heavens and One World

Everyone dreams, even every night. However, most dreams are forgotten during the day, so we often think that we are not dreaming. The world in dreams is created by our frantic brains during sleep, just like flowers in a dream or bubbles in water, swirling around and disappearing. But what if those worlds are real? We create the world in our dreams, but whose dream is the real world we live in?