Why hesitate when changing the liturgy? Hildebrand answers

Again, why has the genuflection at the words et incarnatus est in the Credo been abolished? Was this not a noble and beautiful expression of adoring reverence while professing the searing mystery of the Incarnation? Whatever the intention of the innovators, they have certainly created the danger, if only psychological, of diminishing the faithful's awareness and awe of the mystery. There is yet another reason for hesitating to make changes in the liturgy that are not strictly necessary. Frivolous or arbitrary changes are apt to erode a special type of reverence: pietas. The Latin word, like the German Pietaet, has no English equivalent, but may be understood as comprising respect for tradition; honoring what has been handed down to us by former generations; fidelity to our ancestors and their works. Note that pietas is a derivative type of reverence, and so should not be confused with primary reverence, which we have described as a response to the very mystery of being, and ultimately a response to God. It follows that if the content of a given tradition does not correspond to the object of the primary reverence, it does not deserve the derivative reverence. Thus if a tradition embodies evil elements, such as the sacrifice of human beings in the cult of the Aztecs, then those elements should not be regarded with pietas. But that is not the Christian case. Those who idolize our epoch, who thrill at what is modern simply because it is modern, who believe that in our day man has finally "come of age," lack pietas. The pride of these "temporal nationalists" is not only irreverent, it is incompatible with real faith. A Catholic should regard his liturgy. with pietas. He should revere, and therefore fear to abandon the prayers and postures and music that have been approved by so many saints throughout the Christian era and delivered to us as a precious heritage. To go no further: the illusion that we can replace the Gregorian chant, with its inspired hymns and rhythms, by equally fine, if not better, music betrays a ridiculous self-assurance and lack of self-knowledge. Let us not forget that throughout Christianity's history. silence and solitude, contemplation and recollection, have been considered necessary to achieve a real confrontation with God. This is not only the counsel of the Christian tradition, which should be respected out of pietas; it is rooted in human nature. Recollection is the necessary basis for true communion in much the same way as contemplation provides the necessary basis for true action in the vineyard of the Lord. A superficial type of communion -the jovial comradeship of a social affair -- draws us out onto the periphery. A truly Christian communion draws us into the spiritual deeps.

An amazing article by the Late Dietrich von Hildebrand, Read the rest Here!