Inner fire

"If a man gives way to all his desires, or panders to them, there will [be] no inner struggle, in him, no "friction", no fire. But if, for the sake of attaining a definite aim, he struggles with the desires that hinder him - he will then create a fire which will gradually transform his inner world into a single whole."

Ouspensky, quoted by Ram Dass, Remember: Be Here Now, brown pages.