Arthur Conan Doyle, apart from writing the Sherlock Holmes books, was a great believer in spiritualism. Even when one of the legendary Fox sisters, Margaret Fox, admitted in 1888 that everything she and her family had done was all part of an elaborate hoax, Arthur had this to say:
Nothing that she could say in that regard would in the least change my opinion, nor would it that of any one else who had become profoundly convinced that there is an occult influence connecting us with an invisible world.
Arthur Conan Doyle devoted a whole chapter of his book The Edge of the Unknown to a detailed argument that even Houdini had genuine psychic power, but wouldn’t admit it.
Even the most rational of men can find the need to believe in something overpowering in the extreme.