The meaning of aCopernican reversal is that we do not have to go to knowledge to obtain an exclusive hold on reality. The world as we experience it is areal world. But it is not in its primary phases aworld that is known, aworld that is understood, and is intellectually coherent and secure. Knowing consists of operations that give experienced objects aform in which the relations, upon which the onward course of events depends, are securely experienced. It marks atransitional redirection and rearrangement of the real. It is intermediate and instrumental