Dasein has been placed in our fore having primordially, that is, with regard to its authentic potentiality of being a whole; the guiding fore sight, the idea of existence, has attained its definiteness through the clarification of the ownmost potentiality of being; with the concretely developed structure of being of Da sein, its ontological peculiarity, as opposed to everything objectively present, has become so clear that our fore grasp on the existentiality of Dasein possesses sufficient articulation to guide securely the conceptual development of the existentials.