Anno 1670, not far from Cirencester, was an apparition: being demanded, whether a good spirit or a bad? returned no answer, but disappeared with a curious perfume and most melodious twang. Mr. W. Lilly believes it was a fairy.
This pleasant vision was described by John Aubrey, a country gentleman, a sort of bush-league Pepys or Plutarch, of 17th-Century England.
Modern psychiatrists would say that the apparition at Cirencester was a hallucination—a sense image created in the mind without external stimulus. Hallucinations are not the same as delusions, which are imaginary conditions or...