“To the illuminated mind the whole world burns and sparkles with light." - Ralph Waldo Emerson
If E = mc2 then we can divide and conclude that...
Mass (m) = Energy (E/c2)
And there are three varieties...
Natural E/c2 - All mass is basically cooled plasma
Mental E/c2 - Mentally, A mathematical formula, but this has chemical and spiritual properties as well.
Spiritual E/c2 - E (motivation, warmth, love) / c2 (faith, hope, charity, joy)
We can look a the formula and conclude that all mass is basically light and energy. When the sun gives her output of energy and light it does not spit out mathematical formulas but actual energy and light. When a soul is on fire it does not spit out mathematical formulas but actual warmth, motivation, zeal, love, joy, enthusiasm, etc. Only when a mind is on fire does it spit out mathematical calculations.
Calculating E = mc^2 for any object tells you how much energy would result if the entire object disappeared. Which as c is squared results in incredible energy, which also emits light in the reaction. 1 kg of matter, any matter, disassociated, yields 9 x 10^16 joules of energy, or 90,000,000,000,000,000 joules, which also includes light.