"As an entrance way into this portion, it might help to know that Dogen often used question words like What to refer to the ineffable, the wordless, the beyond expression whatever (i.e., the indescribable ultimateness that is 'emptiness' or 'buddha nature') ... and words such as name to refer to the true and ultimate identity of concrete things of this relative world ... and words such as 'this" . . . .