Some of the physical implications involved in self-consistently selecting a ferromagnetic (inequivalent) representation for the Heisenberg exchange Hamiltonian are developed and discussed. This is done by comparing the spin-rotation symmetry of our system in original variables with that same symmetry when written in terms of phusical variables. It is shown explicitly that Goldstone's theorem is satisfied and that dynamical rearrangement of symmetry has taken place in going from original to physical varibles. Thus it is found that the original spin-rotation symmetry transformation is taken up by physical "massless" fields and that the Bose-Einstein condensations of these fields in the physical (ferromagnetic) ground state produce the asymmetry by "printing" the spin quantum number on that state.