The stones were levitated through “the use of those forces in nature as make for iron to swim in the air,” Cayce intoned, while his secretary transcribed. Curiously, he also said that erecting the Great Pyramid took a hundred years, far longer than the 20 or 30 estimated by classical historians and present-day Egyptologists alike. (One might ask, What good is levitation if it’s so much slower than manual labor?) The placing of the capstone—long since missing, if it ever existed—was accompanied by a loud clanging of metal, Cayce said, to which we owe the tradition of church bells.