 A bishop can judge an alleged private revelation to be either worthy of belief ("constat de supernaturalitate") or not worthy of belief ("constat de non supernaturalitate").A private revelation that is worthy of belief can receive full approval if it is approved by the Pope, such as happened with the revelations to St. Margaret Mary.Papal approval does not include popes visiting sites of alleged revelations, granting special privileges to shrines, offering gifts to alleged visionaries, or speaking favorably of alleged revelations or visionaries.