From flower power to punk – pyschedelia comes in many guises. Its multiplicity of forms is part of what inspires the fascination for this movement that continues to this day. In 2005 and 2006 there was a large retrospective exhibition in Frankfurt and Liverpool called Summer of Love. Lars Bang Larsen, currently busy with his doctoral research, is a specialist on the subject. METROPOLIS M asked him to expound upon the deeper meaning of the movement.