Reading is the careful study of the Scriptures, concentrating all one’s powers on it. Meditation is the busy application of the mind to seek with the help of one’s own reason for knowledge of hidden truth. Prayer is the heart’s devoted turning to God to drive away evil and obtain what is good. Contemplation is when the mind is in some sort lifted up to God and held above itself, so that it tastes the joys of everlasting sweetness.
–Guigo II (d. 1188)