Virtual reality application design is usually guided by a content-driven strategy, which gives priority to the application's content and context. In this paper, we shall describe and study a novel strategy in VR application design that is centered on the design of the user interaction, regardless of the specific content of the application. This is especially useful in creative/artistic applications of VR. We shall present the specific case of an artistic VR application from which this strategy has emerged. This VR experience, El Ball del Fanalet or Lightpools has been successfully presented at the Miró Foundation in Barcelona (Spain).