Luna, Eclipse, and Quartet tries to mimic the astronomic landscape and put this landscape in a created space that isolated from the true world. As the moon is become part of human history and also daily life, moon eclipse has to be given different cultural meanings to people. For example, the period of the moon is a metaphor of females body. In the dark room, when people approach the projected Wall, the moon eclipse will start and covering the moon shapes. The four copies arouse the feeling of otherness to the true reality of one moon. The first shape is incompletely hidden by the reflection of a mirror. It is for people to find the moon is on the another side of the room. Thus the practice of phenomenology is here: for people to manipulate the moon eclipse, to feel the astrologic phenomenon in a temporary space. The audience became the true performer of this lunar quartet.