To abstain from sin when one can no longer sin is to be forsaken by sin, not to forsake it.
Saint AugustineThe soul is "torn apart in a painful condition as long as it prefers the eternal because of its Truth but does not discard the temporal because of familiarity.
Saint Augustine... at the beginning of the human race the woman was made of a rib taken from the side of the man while he slept; for it seemed fit that even then Christ and His Church should be foreshadowed in this event. For that sleep of the man was the death of Christ, whose side, as He hung lifeless upon the Cross, was pierced with a spear, and there flowed from it blood and water, and these we know to be the sacraments by which the Church is built up.
Saint Augustine