  We develop a three-point formalism to treat vacuum susceptibilities used for
the coupling of currents to hadrons within the method of QCD Sum Rules. By
introducing nonlocal condensates, with the space-time structure taken from fits
to experimental parton distrbutions, we show that one can treat hadronic
coupling at zero or low momentum transfer as well as medium and asmptotic
momentum transfers and obtain a general expression for the vacuum
susceptibilities of the two-point formalism. The pion susceptibility, for which
there has been a major uncertainty, is evaluated successfully with no new
parameters.
