Nature is regulated by physical and chemical phenomena that transform matter. 

The photographic sequences are temporal evolutions of a system, ongoing processes, formed by a primordial stage in which the particles are concentrated in clouds of energy (phase of formation) and a final phase in which the same, held together by forces internal to the system, they dissociate disintegrating themselves in the space (phase of explosion). 

Light, like energy, becomes the source and subject of the whole process of creation.