When the duality of this ground is split into polarity, then we have not only the alternating plus and minus valences given to one half or the other, but we have a more fundamental negativity, that of the split archetype
Hillman argues that the negative senex and negative puer are both symptoms of a single prior disorder — the splitting of the senex-puer dyad from its integrated archetypal ground.
, Senex & Puer, 2015thesis