You are highly, highly recommended to read this post by Robert Jackson. It explains in a very intuitive way exactly how causation must and can only be a matter of caricature, OOO style. In order to have a handle with which causation can work, there has to be some kind of interface (read sensual object) that enables one object to act on another object. If you've ever used an ATM you have caused a bank to give you money by operating with an interface that reduces that bank to an encapsulated picture.
Robert's post shows why aesthetics is first philosophy.