  Since the 1935 proposal by Einstein Podolsky and Rosen the riddle of
nonlocality, today demonstrated by innumerable experiments, has been a cause of
concern and confusion within the debate over the foundations of quantum
mechanics. The present paper tackles the problem by a non relativistic approach
based on the Weyl's conformal differential geometry applied to the
Hamilton-Jacobi solution of the dynamical problem of two entangled spin 1/2
particles. It is found that the nonlocality rests on the entanglement of the
spin internal variables, playing the role of "hidden variables". At the end,
the violation of the Bell inequalities is demonstrated without recourse to the
common nonlocality paradigm. A discussion over the role of the "%
\textit{internal space"} of any entangled dynamical system involves deep
conceptual issues, such the \textit{indeterminism} of quantum mechanics and
explores the in principle limitations to any exact dynamical theory when truly
"hidden variables" are present. Because of the underlying geometrical
foundations linking necessarily gravitation and quantum mechanics, the theory
presented in this work may be considered to belong to the unifying "quantum
gravity" scenario.
