Within Christianity, when a different church body or denomination is raised in discussion, often similarities and differences are brought up or highlighted in terms of particular practices of piety and acts of devotion. This is also the case among those within one's own church body or denomination who differ on these matters.
When liturgical piety is attacked or undermined within church bodies that are historically liturgical it may be due to the questioning of acts of piety or a questioning of the essence of the liturgy itself. Whole movements within and outside of Christianity have arisen over the centuries in opposition to the liturgy. Charges of "ritualization" or "hyper-ritualization" are raised. The liturgy may be characterized in different ways and minimized as mere aesthetics (which implies that action is disconnected from the faith; worship is but public "show").
Is it rationalism? Is the liturgy now defined by the social sciences? The Scripture and the Church's tradition dare root the practice of liturgy in the Church's prayer. In the Christian tradition the liturgical direction is toward Christ in the Eucharist on the altar where the Lord's death is proclaimed. Even the preached Word leads to the altar.
When the liturgy and liturgical piety are attacked or undermined this may be due to a desire for new and exciting trends and fads, a desire to follow after movements or groups who do not follow the practices of the historic liturgy or a misunderstanding or rejection of the focus and spirit of the liturgy - that is the Sacrament of the Holy Eucharist.
Liturgical piety is best practiced in the light of the one, holy, catholic and apostolic Church and her Tradition. The handing over of the deposit of faith takes place in the Church and is prayed in the liturgy. The Church believes, teaches and confesses what she prays and what she passes on to the faithful.
Rejection of the liturgy and acts of liturgical piety, even if we ourselves are not comfortable with such, is a conscious or unconscious rejection of the continuity of the faith. We do best to uphold the distinct nature of the liturgy and return to an appreciation of the essence of liturgical piety as is summarized in the lex orandi, lex credendi.