The caudal vertebrae (coxxyx), the most significant part of the body that distinguishes humans from animals. The symbols and images derived from it form the "signifier chain" of the body and objects And becomes narrative in the gaze of the viewer: An office in the middle of ecology and the jungle, The bodies of white-collar workers are alienated by the materials of their profession and office ...... PHYSICAL GUERRILLAS invaded the office space in an office building, where they checked in together every day in hundreds of trees, and fully integrated into this unique field with anxiety and involution: Different groups of people are spaces – any psychological and spiritual communication will create a "new space", and the sound environment of the area will regain a new space with a unique texture.