A Modern Myth of Things Seen in the Skies – thus did Jung sub-title his astonishingly perceptive book on UFOs (1) and even today, nearly a quarter of a century later, we could not easily better his description. During that quarter century, a great many people have reported seeing a great many more UFOs; a great many people have written books and articles about them; cults have sprung up around them, some to persist and others to fade back into oblivion. 
In March 1967 Luis Castillo, an American petty criminal, was arrested in the Philippines under suspicion of conspiring to assassinate president Marcos. Under interrogation he told a strange story, which he adhered to even under hypnotic questioning. Over a period of years, he claimed, his mind had been controlled by some mysterious agency.
Early opponents of spiritualism claimed that it was liable to drive its a adherents mad; to which others riposted that adherents to spiritualism were probably mad to begin with. Is is the same with ufology? Nobody who delves at all deeply into the subject can escape moments when he doubts his own sanity. The question is, are we mad to get involved with the subject at all, or is it the subject which is eroding the ramparts of reason we so desperately defend against the lunacy around us?