All the children of Israel went forth from the land of Egypt, but not all went forth heartily, and so, when wandering in the desert, some of them sighed after the leeks and onions,—the fleshpots of Egypt. Even so there are penitents who forsake sin, yet without forsaking their sinful affections; that is to say, they intend to sin no more, but it goes sorely against them to abstain from the pleasures of sin;—they formally renounce and forsake sinful acts, but they turn back many a fond lingering look to what they have left, like Lot’s wife as she fled from Sodom. They are like a sick man who abstains from eating melon when the doctor says it would kill him, but who all the while longs for it, talks about it, bargains when he may have it, would at least like just to sniff the perfume, and thinks those who are free to eat of it very fortunate. And so these weak cowardly penitents abstain awhile from sin, but reluctantly;—they would fain be able to sin without incurring damnation;—they talk with a lingering taste of their sinful deeds, and envy those who are yet indulging in the like....
Be sure, my daughter, that if you seek to lead a devout life, you must not merely forsake sin; but you must further cleanse your heart from all affections pertaining to sin; for, to say nothing of the danger of a relapse, these wretched affections will perpetually enfeeble your mind, and clog it, so that you will be unable to be diligent, ready and frequent in good works, wherein nevertheless lies the very essence of all true devotion.
St. Francis de Sales, Introduction to the Devout Life, Part I, Chapter VII
