Oratio, Meditatio, Tentatio
"I want you to know how to study theology in the right way. I have practiced this method myself…The method of which I am speaking is the one which the holy king David teaches in Psalm 119…Here you will find three rules. They are frequently proposed throughout the psalm and run thus: Oratio, meditatio, tentatio” (prayer, meditation, trial)."
– Martin Luther –