In order to be able to feel alive, we … need more and more external excitation. The stimuli themselves … force us into an addictive mode. Since we think that all we require is more of them in order to fill up the emptiness, our need will grow for what actually increases the void. There are numerous stimuli of this sort: loud music, large cars, glittering colors, gleaming machines. What we finally seek for our feeling of aliveness is simply the speed with which a change in stimuli takes place. The form or content of the stimulus will have scarcely any significance. In fact empty forms will be preferred, since those with content and meaning slow down the tempo of change. To find meaning in an experience requires, after all, an act of mental organization, and that takes time.