  The functional integral for QCD is reformulated by introducing explicitly an
integration over the fluctuations of composite quark-antiquark bound states.
Chiral symmetry breaking by the color singlet scalar field induces masses for
the fermions. Our formulation with scalar fluctuations may be useful for
lattice gauge theories by modifying the spectrum of the Dirac operator in the
vacuum and permitting a simple connection to chiral perturbation theory. We
propose that a ``condensate'' of quark-antiquark bound states in the color
octet channel generates masses of the gluons by the Higgs mechanism. A simple
effective action for quarks, gluons and (composite) scalars yields a
surprisingly good description of the charges, masses and interactions of all
low mass physical excitations - baryons, pseudoscalars and vector mesons.
Dressed quarks appear as baryons and dressed gluons as vector mesons.
