  Much as it was in his earlier thinking, the central theological concept here in the second part of the Star is revelation. In Rosenzweig’s earliest formulations, revelation denotes the turning of the absolute other into relation with the human self in the world, a relation through which the human self orients herself in the world. In the Star, this same relation occurs in the midst of a nexus of relations between beings, and it does indeed orient the human being who receives revelation within this nexus of relations. Aware of herself as having been born into the world, awakening to her own free selfhood, the human being is called on to enter into those relations with others in the world that will realize the redemptive unity of the “All.” Insofar as this unity of the “All” is anticipated as future, moreover, its realization may be said to depend on human beings taking up the vocation they become aware of in revelation. The systematic unity of the “All” Rosenzweig seeks to know in the present, remains a possibility to be actualized. And Rosenzweig understands revelation to orient the human being towards this actualization.