As Christianity becomes marginalized by the Secular Progressive movement (and if you do not believe that is happening look at Western Europe) it becomes increasingly important to take a holistic approach to religion. Christianity should affect every part of the believer's life, not just Sunday mornings and Holydays of Obligation. Christianity should be taught not just as a religion, but as a way of life, a culture, an integrated system. Detaching Christianity from life - which is the logical consequence of teaching it as "just a religion" - actually plays into the hands of the secular progressives as it makes it far easier for them to portray Christianity as irrelevant to daily life - pie in the sky when you die.
When I talk about holistic religion, that naturally brings to mind another word that derives from the same Greek root - catholic. The essence of the catholic faith is both redemptive and incarnational. It values the physical as well as the spiritual as God-made. It is a culture as well as a religion. Thus in our teaching of the faith we need to teach not just Christian theology, but Christian morality, Christian Liturgy, Christian Art, Christian Culture. If the Twenty-first Century is going to be the twenty-first Christian Century the Church is going to have to teach the fullness of Christianity in order to resist the in-roads of the Truth's two great enemies Secularism, and Islam. They are not shy about (mis)representing their errors as integrated world view; and we should be forceful in our declaration of Christian as the way, the truth, and the life. (Archbishop Peter Robinson, UECNA)