The protagonist is a "boundary observer", responsible for guarding the "reality-dream" boundary (the desert is the concretization of the junction). Recently, the boundary line has been loosened and dream elements have penetrated into reality. His task is to repair the boundary. In the process, he gradually found that "there is no absolute boundary between dream and reality".

The half-buried plaster head is the "first sign of dream leakage"-a statue of the ancient dream guardian, now broken and exposed in the real desert. He stopped to watch to check the looseness of the border. The warm sand-colored hoodie merged with the desert, suggesting that he was "both an observer and a part of the border".

The three ring rings are the "energy core of the border", originally hidden under the desert, but now surfaced. He stands in the center, activating the energy core. The warm orange pink volume light of the halo is the concrete image of energy, the floating dust particles are the traces of energy flow, and the slightly shaking lens indicates the instability of the boundary. The weightless and floating classical porch columns and arches are the "order buildings" in the dream-after the elements of the dream are out of control, the buildings that originally maintained the order of the dream fall into the real desert. He stands in the center, recalibrating the position of these buildings. The distant shadows of cold blue and gray are the "cold energy of dreams", forming a visual confrontation with the main tone of warm light in the "reality-dream. The inverted dune complex is a "spatial distortion of reality and dream"-the building is upside down, meaning that the spaces of the two worlds begin to overlap. He suspended it to repair the space distortion. The central symmetrical structure symbolizes "the need to re-establish balance". The volume fog enhances the hazy feeling of space overlap. The desert becomes the deep sea and the giant whale swims across, which is the "explosion of high concentration dream energy"-the giant whale is the "balance beast" in the dream. Now it appears in the real desert, which means that the border is about to collapse. He levitated and looked at the whale. The arc of the earth was replaced by the boundary between the desert and the deep sea. The outline of the body outlined by the warm light was the "anchor point of reality" to prevent being swallowed by dream energy. Hundreds of floating pure white plaster images are "dream fragments trapped at the junction line"-each plaster is an unfinished dream, and floating without gravity means they cannot return to dreams or reality. He needs to guide these fragments. The delicate noise is the unstable texture of dream fragments. The glowing coral that grows in the desert is the "medium of border restoration"-the translucent orange-pink glow of the coral neutralizes the cool energy of the dream. He stands in the center, wrapping the dream fragments with coral energy. The light at the top is the "repair signal". The main tone of warm ochre powder gradually covers the cold shadow, symbolizing the return of real energy. The spiral ladder leads to the cloud and is the "core hub of the border". He climbed alone to reach the hub to complete the final repair. The pure white and warm highlights of the ladder are "pure balanced energy". In the process of climbing, the lens shakes slightly and gradually weakens, symbolizing the gradual stability of the boundary. Finally, he steps into the cloud, which means the completion of the boundary repair. He also understands that "proper dream leakage makes the reality warmer".