Phenomenology is a program of descriptive ontology. It avoids all theorizing which transcends explication of appearances. To limn this character of our program we will refer to phenomenologically explicated features of being as 'senses' or 'significances." The senses or significances of appearances are the presented meaning of being-for-us. The general constitutive significances of appearances are the categories of appearance. Insofar as they are intellectually apprehended as notes of meaning, they are notional. They are presented as apprehendable by reason.¹