Darkness – is not a lack of light, but an emanation of energy. Darkness is more dense than light and therefore heavier. Darkness is a component of radiation, it is unknowingly called darkness because of inaccessibility for our senses, but nevertheless it is our environment having its impact.
In polish language there are two words Ciemność – darkness and Mrok – state of the lack of the light.
Mrok – only lack of light, which is only a part of the spectrum of radiation that I research.