The differential element delineates the field of base values from which all other values originate. Genealogy is thus the analysis of Will the Power, the differential element, by means of interpretation of the conformation of forces which are symptomatic of it. Force here is multiple, for it contains within itself a multiplicity of possible senses, is an interpretive matrix, if you will, appearing to us only in our reading of it. Will to Power, as differential element, remains necessarily inapparent, except as expressed in force as difference . Interpretation, however, is not neutral, but is, itself, evaluative, bringing to bear the critical force of the reader onto the field of symptoms and signs of other forces, is a meeting of force by force.
Interpretation is, thus, also a contention, a wrestling match, a struggle between different forces.
Thus Nietzsche's fascination with artists, for they provide the paradigm for the act of knowledge itself, not, in other words, a passive distancing, a withdrawal, but an approach to and engagement with the material force of the world.