Liturgy is a constitutive element of the holy and living Tradition.andhttp://www.va/news_services/liturgy/2006/documents/ns_lit_doc_20060323_ritorno-fonti_en.htmland if I can quote Marini: Lex orandi, lex credendiHowever it is above all in the Liturgy that renewal cannot do without a sincere and profound return to the sources: sources of that which is celebrated and sources of that which is beli