Ok, so we all know the following... Elementary quantum mechanics is constructed by postulating the canonical commutation relation (CCR) between the coordinate of a particle and its conjugate momentum. Quantum Field Theory, on the other hand, is constructed by postulating the exitence of a field and by imposing the same sort of CCR on field at every space-time point (as though each point on the field were an elementary quantum mechanical particle). Doesn't it seem strange that the particles that emerge as a result of applying CCR to fields themselves obey the CCR imposed by ordinary quantum mechanics, (in the low energy limit)? I think its kind of spooky.