  Recently it was demonstrated, both theoretically and experimentally, how to
separate a particle from its spin, or any other property, a phenomenon known as
the "Quantum Cheshire Cat". We present two novel gedanken experiments, based on
the quantum Zeno effect, suggesting a dynamical process thorough which this
curious phenomenon occurs. We analyze, for the first time, a quantum current
consisting of spin without mass. Thus, the quantum variables of pre- and
post-selected particles are understood to be involved in various interactions,
even in the absence of their owners. This current is shown to provide a local
explanation for seemingly nonlocal interactions.
