The dance floor is now bustling. Sound and movement combine to give the impression of chaos. A pleasant experience of sensory overload can occur. It is dark, crowded, very warm and humid. The lighting appears to be linked to the music, which is now penetrating minds and bodies, going through rather than around clubbers as its intensity increases. Many clubbers appear to be almost picked up by the music and commanded or orchestrated in their dancing, unable to stop, not wanting to stop, unable to even conceive of stopping. This experience is characterised by moments of extraordinary euphoria and happiness.