Hmm.. That's a good point Khaos. But, not to contradict you but maybe add on.. If an ancient culture (let's say Egypt) was building this giant pyramid that took decades or centuries(whatever) to build, in order to send the pharoah to the afterlife and then said pharoah is seen wandering around as a ghost wouldn't that kind of be a huge downer to their morale to say they spent all that time on this thing only for the pharoah to not cross over? So maybe that's another reason they don't tell too many stories about it? Like the gods slapping them in the face saying.. HAHA you spent all this time building this giant thing and now I reject your pharoah for it. HAHA. .. Just sayin'.
