  The particularity of nothingness experienced in the fear of death thus leads Rosenzweig to take up a starting point in difference. Every particular kind of being must be taken up as derived from its own particular nothing, rather than as rooted ultimately in a common unity.  Censuring the tendency of the philosophical tradition, once again, to reduce the three domains of special metaphysics one to the other—to reduce selfhood and world to manifestations of the divine, or the divine and the self to aspects of the cosmos, or the divine and the external world to products of the human mind—Rosenzweig takes up each of these three different kinds of beings as having generated itself out of its own particular nothing.