It's just a full body immersion into the experience of the music. The focus of attention heightens when everyone is fixed on the same object or spectacle. The physical density of social interaction includes the number of individuals confined to a common space and the length of time that they spend in each other's presence. The re-gathering of these individuals comes to represent a ritualistic practice that draws this group closer together. Each person becomes aware of other's concentration, which further intensifies the focus on the event. You're feelings and emotions sync with the band, the crowd, the whole venue becomes a living beast. The result is a ritualistic activity that when repeated, allows these individuals to re-visit a set of emotions and actions within an intensified mass gathering.