Sentence:  It is the <WSD>goneness</WSD> of the Holocaust that produces the simultaneous profusion of discourses and understandings; the goneness is what opens up, what spurs, what unleashes the perpetual desire to do, to make, to rethink the Holocaust. 
Meaning of the word marked with <WSD> tags:  The state or quality of being gone, i.e. no longer present.