Paul Devereux refers to the Grace Dieu phenomenon in his 1982 book, "Earth Lights: Towards and Explanation of the UFO Enigma", and sets out his theory that such manifestations are a rare but naturally occurring phenomenon, wrought by unusual electromagnetic fields associated with fault areas which interfere with the normal cycles of the atmosphere.
Boucovolas also suggests that literature on sacred places, such as that by Paul Devereux, may be germane to this field.
Pope John Paul II | Paul McCartney | Paul Simon | Paul Newman | Pope Paul VI | St Paul's Cathedral | Paul | Jean-Paul Sartre | Peter Paul Rubens | Paul Robeson | Paul Anka | St. Paul | Paul Hindemith | Paul Revere | Paul Weller | Paul Klee | Saint Paul | Paul Kelly | Paul Cézanne | John Paul Jones | Paul Ryan | Paul Gauguin | Paul Oakenfold | Jean Paul Gaultier | Paul the Apostle | Paul Keating | Paul Auster | Pope John Paul I | Paul Martin | Paul Whiteman |
Authors who wrote on earth mysteries in the 1980s include Paul Devereux and Nigel Pennick.
Paul Devereux, John Baker, Christopher Chippindale, Neil Mortimer, George Nash, and Michael Winkelman.
Associates of PSI include: Mathew Atha, Colin Angus, Brian Barritt, Michael Carmichael, Fraser Clark, Paul Devereux, the late John Entwistle, Paul Flynn MP, Ben Ganly, Lee Harris, Mike Jay, Howard Marks, Dr John Marks, Jonathan Ott, Dr Russell Newcombe, Richard Rudgley and Youth.