 The canonization of a mystic or an imprimatur given to a book of revelations do not mean a private revelation is authentic, because the church does not pronounce on alleged revelations when it pronounces on the holiness of an individual and because the Imprimatur only guarantees that a book is free from all doctrinal and moral errors.Certain private revelations have been the subject of conspiracy theories.The theories include church coverups, church officials siding with the local government to destroy apparitions, visionaries' doubles, and church corruption.