The document discusses how the opening sequence of Blue Velvet establishes expectations for happiness and safety in the community according to the Equilibrium Theory. It does this through portraying stereotypical symbols of safety like the fire truck and friendly firemen. It also shows children being protected and the American dream of homeownership. However, things take a disturbing turn when an elderly man struggles with a hose and collapses in pain, indicating something has gone wrong and shattered the perceived equilibrium.