@Savva06 phil,
Dasein's mode of being is to be itself, and the task of being Dasein, is Wholeness. Wholeness, is determined by limits, in and within or over Dasein. Death is an example of an indefinite, yet wholly undefinable definability. However, Wholeness, is the fundamental primordial essence of what Dasein's being-to-find-out is. If wholeness was ever an entity and Dasein discovers this "entity", the meaning of what Dasein is and could be, is negated by the discovery and unmasking of the Wholeness. In such a case, Dasein can never be experienced as reality.