The following is excerpted from a letter Archbishop Malcolm Cardinal Ranjith wrote concerning the liturgical reform happening in the Roman Church. His words are insightful and instructive.
As you know, it is worship that enhances faith and its heroic realization in life. It is the means with which human beings are lifted up to the level of the transcendent and eternal: the place of a profound encounter between God and man.
Liturgy for this reason can never be what man creates. For if we worship the way we want and fix the rules ourselves, then we run the risk of recreating Aaron’s golden calf. We ought to constantly insist on worship as participation in what God Himself does, else we run the risk of engaging in idolatry. Liturgical symbolism helps us to rise above what is human to what is divine.
Source: New Liturgical Movement