certain rocks and minerals within the earth, or even large bodies of water above or below ground, were conducive to storing the residual energy left behind when someone died, and this energy could play back for years, decades, or even centuries. This was why most ghosts didn’t seem to possess intelligence, personality, or mass, and why their actions were always the same; they were the three-dimensional equivalent of old TV programs playing over the air long after the actors in them had died.
