Explanation: "You stand on the bridge and look at the scenery." The relationship between you and the "landscape" is at opposite ends, but the characters and scenery have quietly changed in the relationship and exchange. , because "people watching the scenery are watching you upstairs", you have become the "scenery" again. The "scenery" you saw before is no longer "scenery" among the people who are paying attention to you. "The bright moon decorates your windows, and you decorate other people's dreams." At this time, "you" who had never wanted to enjoy the scenery upstairs subconsciously came to the window to appreciate the clear brilliance of the bright moon, but inadvertently... It has become a "landscape" that haunts other people's dreams - in other people's dreams, "you" is their bright moon. The meaning of the first two sentences has been further enriched, sublimated and formed from the continuous repetition. An infinitely rich and diverse open system. "You", "the people upstairs", countless "yous". Countless "people upstairs". *** Together make up this world. "You" are living your own life, "looking at the scenery on the bridge"; the "people upstairs" are also living their own lives, "looking at you upstairs". By some chance or necessity, you meet, after that. Either leave, or get to know each other, each doing his own thing, holding his own dreams, and creating this beautiful world together. Or they complement each other, depend on each other, and decorate each other's "windows" and "dreams".