The electric light is produced by a current of electricity acting upon a piece of carbon and causing it to glow with light. In itself the carbon gives no light and is only a hard, black, lifeless substance, but when the power of that invisible, mysterious current flows into it, it is made to glow with a dazzling brightness, emitting a genial warmth as well as a clear light. In order that this light may shine out brightly the body which contains that carbon needs to be transparent, clean, invisible. So the hard, dark heart of man needs to be kindled into a glow by divine power and, and the body should allow the divine light and warmth kindled in it to flow out unhinderedly for the blessing of others.