From The Smoke of Satan in the Temple of God: In 1959, Pope John XXIII saw a true need for liturgical renewal within the Roman Rite in accordance with the metaphorical principle of organic development, the aim of the Liturgical Movement endorsed by Pope St. Pius X. In authentic organic development, the Church listens to what liturgical scholars deem necessary for the gradual improvement of liturgical tradition, and evaluate the need for such development, always with a careful eye on the preservation of the received liturgical tradition handed down from century to century. In this way, continuity of belief and liturgical practice is ensured. As Cardinal Ratzinger wrote at the time, the principle of organic development ensures that in the Mass, “only respect for the Liturgy’s fundamental unspontaneity and pre-existing identity can give us what we hope for: the feast in which the great reality comes to us that we ourselves do not manufacture , but receive as a gift. Organic de...