It is by mathematical formula that all mass is made up of energy and light...
E - Energy measured in Joules. 1000 joules = 1 BTU, which is the amount of energy required to raise temperature of one pound of water by one degree Fahrenheit. This is a unit of heat.
c - Light - c2 is the speed of light squared. Radiation is electromagnetic waves. As the speed of light is in the denominator, and is an enormous number, shows an enormous amount of energy sewed into each atom.
Radiation, heat, light, plasma, electromagnetism, and energy all come from the product of mass, or E/c2. And proceed from... “Father of lights, with whom is no variableness, neither shadow of turning.” - James 1:17
Plasma - I remember in the space shuttle days hearing the commentators refer to thrust and re-entree from the space shuttle as plasma energy. The title on the video below calls this a Plasma Trial...