The concrete result of the research is the work To Be, which shows the reflection of the being in all its shades. The meaning questions the person about its position, essence and presence. The individual has to express his experience to confront himself and to be changed by it. This installation takes form only with the presence of the spectator. A video-camera perceive his presence and activate in front of him a video with a life-size character which speaks to him and to the characters of the other two videos aside. The videos appear only if someone is in front of them and, with some balloons, the obserber can interact.