The "Happenings" first started as tightly scripted events, in which the audience and performers followed cues to experience the art. To Kaprow, a Happening was "A game, an adventure, a number of activities engaged in by participants for the sake of playing." Furthermore, Kaprow says that the Happenings were "events that, put simply, happen." There was no structured beginning, middle, or end, and there was no distinction or hierarchy between artist and viewer. It was the viewer's reaction that decided the art piece, making each Happening a unique experience that cannot be replicated. It is participatory and interactive, with the goal of tearing down the wall a.k.a. "the fourth wall" between artist and observers, so observers are not just "reading" the piece, but also interacting with it, becoming part of the art.