“This therefore should be the aim, this the concern and goal of a spiritual man – to be worthy to possess the image of future bliss in this corruptible body, and in a certain measure experience in advance how the foretaste of that heavenly bliss, eternal life and glory begins in this world. This, as I say, is the goal of all perfection, that his purified mind should be daily raised up from all bodily objects to spiritual things until all his mental activity and all his heart’s desire become one unbroken prayer. So the mind must abandon the dregs of earth and press on towards to God, on whom alone should be fixed the desire of a spiritual man, for whom the least separation from that summum bonum is to be considered a living death and dreadful loss. Then, when the requisite peace has been established in his mind, when it is free from attachment to any carnal passion, and clings firmly in intention to that one supreme good, the Apostle’s sayings are fulfilled, ‘Pray without ceasing.’ (1 Thessalonians 5:17) and, ‘Pray in every place liftung up pure hands without anger or dispute.’ (1 Timothy 2:8) For when the power of the mind is absorbed in this purity, so to speak, and is transformed from an earthly nature into the spiritual or angelic likeness, whatever it receives into itself, whatever it is occupied with, whatever it is doing, it will be pure and sincere prayer.
In this way, if you continue all the time in the way we have described from the beginning, it will become as easy and clear for you to remain in contemplation in your inward and recollected state, as to live in the natural state.”
-St. Albert the Great