""Nothingness" is generally forced into a relationship with "being" and made to serve as its negation, leading to its conception as something that "is" nothingness because it "is not" being. This seems to be especially evident in Western thought, even in the "nihility" of nihilism. But insofar as one stops here, nothingness remains a mere concept, a nothingness only in thought. Absolute nothingness, wherein even that "is" is negated, is not possible as a nothingness that is thought but only as a nothingness that is lived. It was remarked above that behind person there is nothing at all, that is, that "nothing at all" is what stands behind person. But this assertion does not come about as a conceptual conversion, but only as an existential conversion away from the mode of being of person-centered person. Granted what we have said about the person-centered self-prehension of person as being intertwined with the very essence and realization of the personal, the negation of person-centeredness must amount to an existential self-negation of man as person. The shift of man as person from person-centered self-prehension to self-revelation as the manifestation of absolute nothingness – of which I shall speak next – requires an existential conversion, a change of heart within man himself."