So simplify your heart with all care, diligence and effort so that still and at peace from the products of the imagination you can turn round and remain always in the Lord within yourself, as if your mind were already in the now of eternity, that is of the godhead. In this way you will be able to renounce yourself through love of Jesus Christ, with a pure heart, clean conscience and unfeigned faith, and commit yourself completely and fully to God in all difficulties and eventualities, and be willing to submit yourself patiently to his will and good pleasure at all times.
— Saint Albert the Great (c. 1206-1280)