"It exploited the belief among many of the Vietnamese people that once a person is dead the remains must be placed in an ancestral burial ground or that person will forever wander aimlessly in space forever...
...The tape was so effective that we were instructed not to play it within earshot of the South Vietnamese forces, because they were as susceptible as the Viet Cong or North Vietnamese Army...
Wandering Soul' broadcasts of eerie sounds intended to represent the souls of enemy dead who have not found peace (i.e. by being buried in the village family plot)...the idea was that the sounds would at least get a Communist soldier to think about where his soul would rest in the likely event of his being killed far from home."