To know the mechanics does not mean that we are practicing the Disciplines. The Spiritual Disciplines are an inward and spiritual reality, and the inner attitude of the heart is far more crucial than the mechanics for coming into the reality of the spiritual life.
~ Richard Foster
A spiritual discipline won't necessarily bring you closer to God. Only God, as we are open and cooperate with the Spirit, can bring you closer. What the discipline is meant to do is to help you get yourself, your ego, out of the way so you are open to Grace.