Since it is an "art" rather than a science, it's not surprising that there are different descriptions or methodologies. Nevertheless, the dissimilarity of some portions of what gets called "lectio divina" has left me puzzled.
Historically, the term was described first by Guigo II in the 12th century:
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.
This outlines what can be briefly stated with four terms:
Meditatio- application of mind
Contemplatio- the cream of the crop, joyous contemplation
My Advent discipline will be to read the Bible regularly in this way, reducing my normal reading schedule substantially. I have heard, and will heed, the words of Bonhoeffer, a warning against using lectio as stealth study time. It is a constant danger for all pastors. We read the Bible in order to prepare for a sermon or class, but do not read it as it addresses us. Bonhoefer writes, "Do not ask how you should tell it to others, but ask what it tells you."