On the other hand, if Dasein has seized upon its inherent possi bility not only of making its existence transparent but also of inquiring into the meaning of existentiality itself, that is to say, of provisionally inquiring into the meaning of being in general; and if insight into the essential historicity of Dasein has opened up in such inquiry, then it is inevitable that inquiry into being, which was designated with regard to its ontic ontological necessity, is itself characterized by historicity.