inundado por um mistério de luz que é Deus e N´Ele vi e ouvi -A ponta da lança como chama que se desprende, toca o eixo da terra, – Ela estremece: montanhas, cidades, vilas e aldeias com os seus moradores são sepultados. - O mar, os rios e as nuvens saem dos seus limites, transbordam, inundam e arrastam consigo num redemoinho, moradias e gente em número que não se pode contar , é a purificação do mundo pelo pecado em que se mergulha. - O ódio, a ambição provocam a guerra destruidora! - Depois senti no palpitar acelerado do coração e no meu espírito o eco duma voz suave que dizia: – No tempo, uma só Fé, um só Batismo, uma só Igreja, Santa, Católica, Apostólica: - Na eternidade, o Céu! 
MEDIATOR DEI
ENCYCLICAL OF POPE PIUS XII
ON THE SACRED LITURGY
105. Therefore, they are to be praised who, with the idea of getting the Christian people to take part more easily and more fruitfully in the Mass, strive to make them familiar with the "Roman Missal," so that the faithful, united with the priest, may pray together in the very words and sentiments of the Church. They also are to be commended who strive to make the liturgy even in an external way a sacred act in which all who are present may share. This can be done in more than one way, when, for instance, the whole congregation, in accordance with the rules of the liturgy, either answer the priest in an orderly and fitting manner, or sing hymns suitable to the different parts of the Mass, or do both, or finally in high Masses when they answer the prayers of the minister of Jesus Christ and also sing the liturgical chant.
100. These methods of participation in the Mass are to be approved and recommended when they are in complete agreement with the precepts of the Church and the rubrics of the liturgy. Their chief aim is to foster and promote the people's piety and intimate union with Christ and His visible minister and to arouse those internal sentiments and dispositions which should make our hearts become like to that of the High Priest of the New Testament. However, though they show also in an outward manner that the very nature of the sacrifice, as offered by the Mediator between God and men,[102] must be regarded as the act of the whole Mystical Body of Christ, still they are by no means necessary to constitute it a public act or to give it a social character. And besides, a "dialogue" Mass of this kind cannot replace the high Mass, which, as a matter of fact, though it should be offered with only the sacred ministers present, possesses its own special dignity due to the impressive character of its ritual and the magnificence of its ceremonies. The splendor and grandeur of a high Mass, however, are very much increased if, as the Church desires, the people are present in great numbers and with devotion.
107. It is to be observed, also, that they have strayed from the path of truth and right reason who, led away by false opinions, make so much of these accidentals as to presume to assert that without them the Mass cannot fulfill its appointed end.
108. Many of the faithful are unable to use the Roman missal even though it is written in the vernacular; nor are all capable of understanding correctly the liturgical rites and formulas. So varied and diverse are men's talents and characters that it is impossible for all to be moved and attracted to the same extent by community prayers, hymns and liturgical services. Moreover, the needs and inclinations of all are not the same, nor are they always constant in the same individual. Who, then, would say, on account of such a prejudice, that all these Christians cannot participate in the Mass nor share its fruits? On the contrary, they can adopt some other method which proves easier for certain people; for instance, they can lovingly meditate on the mysteries of Jesus Christ or perform other exercises of piety or recite prayers which, though they differ from the sacred rites, are still essentially in harmony with them.
109. Wherefore We exhort you, Venerable Brethren, that each in his diocese or ecclesiastical jurisdiction supervise and regulate the manner and method in which the people take part in the liturgy, according to the rubrics of the missal and in keeping with the injunctions which the Sacred Congregation of Rites and the Code of canon law have published. Let everything be done with due order and dignity, and let no one, not even a priest, make use of the sacred edifices according to his whim to try out experiments. It is also Our wish that in each diocese an advisory committee to promote the liturgical apostolate should be established, similar to that which cares for sacred music and art, so that with your watchful guidance everything may be carefully carried out in accordance with the prescriptions of the Apostolic See.
110. In religious communities let all those regulations be accurately observed which are laid down in their respective constitutions, nor let any innovations be made which the superiors of these communities have not previously approved.
111. But however much variety and disparity there may be in the exterior manner and circumstances in which the Christian laity participate in the Mass and other liturgical functions, constant and earnest effort must be made to unite the congregation in spirit as much as possible with the divine Redeemer, so that their lives may be daily enriched with more abundant sanctity, and greater glory be given to the heaven Father.