The shadow and light make me think to the potential energy, to the thresholds and their concentration areas, to accelerations. A field where there is a difference between two of its parts. Huddled up, absorbed, bodies. A difference that produces a voltage, an activation, a dissipation, a flash. A current, as in a circuit, that if pushed beyond the peak it can also be interrupted and so it turns off everything. Bodies oppose a natural resistance; the flow encounters opposition elements. Up to the force, which is set in motion, is able to cause a lightining.
The path of an opening. The white figure contained in the black figure that waits until that one is reversed in the other and overwhelms it. What is contained inside, a prisoner, an undulating and flowing figure, an energy, slowly finds its way to the outside.