Abstraction is the movement from concrete particulars to a created  generality.   Adstraction is the opposite movement: from a concrete particular to something that is even more concrete and more particular, but impossible to perceive in an ordinary state, the perception of which has a transformative effect on the soul.  In a way, the Hegelian gesture is the speculative identification of abstraction with adstraction:  reasoning and categorizing are precisely that which is transformative,  approaching a higher reality that is neither a pre-constituted but invisible substance nor a sort of map or model.  Renihilation