Other ideas [30/10]
> Aura can show the real meaning /emotions of a scene / people and reveal the truth (e.g. if the people are pretending)
> Relief (aura = ‘breeze’) (The most basic and literal situation would be in a hot landscape / cityscape / scene, but it could be more complicated than that)
> Constantly changing form (could be the basis of a motion piece / interactive web application?)
> Aura is freedom (air moving freely). A literal opposite is ‘balloons’, as in this case it is trapped.