Since Vipassana Meditation is about experimenting with the nature of the mind and consciousness itself, it is a a very active experiment. The nature of our mind and consciousness is very subtle.
It is a thought experiment about one's own body and the nature of consciousness. A Vipassana meditater is experimenting with his or her own body. There is an act of doing the experiment by directing the consciousness and being aware. By directing awareness to bodily sensations or to the breath, the Vipassana meditater is initiating the experiment.
The idea is that by directing your consciousness in certain directed ways, you will come to certain realizations about the nature of your consciousness.
So this is where things get very tricky. The nature of mind and consciousness is very subtle. So how can you study that thing which is so subtle? Well, this is where the Buddha came up with the brilliant idea of using the body as an apparatus in this thought experiment. The living body is the seat of consciousness.
Hypothesis: Jung's ball is a valid theoretical model.
Creating an experiment for other scientists to replicate the nature of the experiment. The nature of the experiment is to test to see if Jung's ball is a valid theoretical model. The experiment is Vipassana.