LIFE AND LIGHT "DEFINED"
Life is spirit. Inanimate.
Life is without substance or form.
Being and non-being both are life.
Men conceive of life as existence.

True. It is. But much more. Light to us is visible light. A tiny segment of the electromagnetic spectrum is our visible light. For there are other lights that are part of the same spectrum.
These other lights, ad infinitum, are also life. Life has no beginning nor end. Light transcends.