Plasma

Plasma is heated and ionized gas but not all of it is ionized, only certain particles are ionized. The basic premise is that heating a gas dissociates its molecular bonds,. Natural occuring plasma is suprisingly fairly common, lightning is creates plasma as the enormous amount of electricity hits the first atoms of air it heats it up massively and changes it into plasma which is very conductive thus the lightning moves down, also interstellar space is full of plasma currents, plasma in space is

Plasma Connotations
Plasma connotation are usually to do with chaos, fluidity, mystery, and unexpectedly.