So, in the Grimoire cards for the Taken Cabal Primus, Ta'aun, it says "[quote]Free of the... And the stinking oil...[/quote]. Obviously, this is referring to the oil that is constantly found aboard Cabal ships and near most Cabal equipment and machinery. I've got to ask, what is the oil exactly and what's it's purpose within the Cabal Empire? Is it a kind of food that the Cabal uses to power machinery and use themselves? Because the way it's said in the Grimoire card, I'm drawn to believe it's a kind of sustenance. Though, I'm not sure that a life sustained from machine oil is a very healthy one. Thoughts?