Via Yahoo! News, a sad example of how can ghosts can manifest in even in the most hypermodern society when there is unresolved trauma:
The tsunami that engulfed northeastern Japan two years ago has left some survivors believing they are seeing ghosts. In a society wary of admitting to mental problems, many are turning to exorcists for help.
Tales of spectral figures lined up at shops where now there is only rubble are what psychiatrists say is a reaction to fear after the March 11, 2011, disaster in which nearly 19,000 people were killed.
“The places where people say they see ghosts are largely those areas completely swept away by the tsunami,” said Keizo Hara, a psychiatrist in the city of Ishinomaki. “We think phenomena like ghost sightings are perhaps a mental projection of the terror and worries associated with those places.” Hara said post-traumatic stress disorder (PTSD) might only now be emerging in many people,
Many people in Japan hold on to ancient superstitions despite its ultra-modern image. Taxi drivers said they avoided the worst-hit districts for fear of picking up phantom passengers.
“There are headless ghosts, and some missing hands or legs. Others are completely cut in half,” exorcist Kansho Aizawa said. “People were killed in so many different ways during the disaster and they were left like that in limbo.”