We will begin from this point; and let me ask of you who delight in such matters to cleanse your mind and your ears and your thoughts, since our discourse is to be of God and Divine; that when you depart, you may have had the enjoyment of delights that really fade not away.  And this same discourse shall be at once both very full and very concise, that you may neither be displeased at its deficiencies, nor find it unpleasant through satiety.