an energyflow which the thetan shortens. If one placed a flashlight beam upon a wall and then, by manipulating the beam, brought the wall closer to him by it, he would have the action of a tractor beam. Tractor beams are used to extract perceptions from a body by a thetan.an energyflow which the thetan shortens. If one placed a flashlight beam upon a wall and then, by manipulating the beam, brought the wall closer to him by it, he would have the action of a tractor beam.