Could tachyons be the human soul, theoretically speaking, because if it has no mass, like other bosons as opposed to imaginary (m2<0 or E2=p2c2+m2c4), you would be able to ascend to the afterlife after death (basic conservation of energy principle) but if it were a photon, you would never reach heaven, because you would never be able to escape a vacuum under constant expansion? Also, photons wouldn't explain Reiki, Qigong or Tai Chi, since they have zero mass, they cannot levitate or anything.