Conferences of St. John Cassian - Conference Ten on Prayer Part III

After having considered the formula that the mind is to hold to ceaselessly, "O God, incline unto my aid, O Lord, make haste to help me", the group listened to Abba Issac describe the fruits that such a practice produces in the soul.  Chief among them is poverty of spirit: nothing can be holier than that of one who realizes that he has no protection and no strength and who seeks daily help from God's bounty and who understands that his life and property are sustained at each and every moment by divine assistance.  Such a person becomes the "Lord's beggar."  

With this comes the fruit of discretion, that allows one to penetrate the most sublime mysteries.  The very dispositions of the psalms are taken into oneself, so that they arise from the heart not as another's words but as one's own.  The meaning of the words come not through exegesis but through proof; that is, when our experience not only perceives but anticipates its thought.  It will be as if we have become the author, grasping in anticipation the meaning of scripture; having received in power the Word rather than the simply the knowledge of it.

Once the mind's attentiveness has been set ablaze, prayer pours forth in unspeakable ecstasy to God with unutterable groans and sighs.