As we pray the Psalms we often pray things that seem obscure and inapplicable to our personal lives. This is when we should shift into the awareness that we are praying AS the Body of Christ, speaking for the Body the prayers that have filled the lungs of the Church since her inception.
Gnosticism, or the notion that there was "special gnosis for a select few," has always been a heresy that emerges and re-emerges in the Church historically.
As an Order, we commit to a Rule of Life that involves things like a commitment to praying the Daily Office, a weekly participation in the Eucharist, et cetera. But the goal of this “rule” is the intentional, devotional discipline to growing in grace, resisting sin and temptation, and ordering our worship, work, and leisure as a pleasing sacrifice to God (Romans 12:1-2).