8 After this you say, “and all your service.” Now the service of the devil is prayer in idol temples; things done in honour of lifeless idols; the lighting of lamps, or burning of incense by fountains or rivers, as some persons cheated by dreams or by evil spirits do [resort to this], thinking to find a cure even for their bodily ailments. Go not after such things. The watching of birds, divination, omens, or amulets, or charms written on leaves, sorceries, or other evil arts, and all such things, are services of the devil; therefore shun them.
For if after renouncing Satan and associating yourself with Christ, thou fall under their influence, you shall find the tyrant more bitter; perchance, because he treated you of old as his own, and relieved you from his hard bondage, but has now been greatly exasperated by you; so you will be bereaved of Christ, and have experience of the other. Have you not heard the old history which tells us of Lot and his daughters? Was not he himself saved with his daughters, when he had gained the mountain, while his wife became a pillar of salt, set up as a monument for ever, in remembrance of her depraved will and her turning back.
Take heed therefore to yourself, and turn not again to what is behind, having put your hand to the plough, and then turning back to the salt savour of this life's doings; but escape to the mountain, to Jesus Christ, that stone hewn without hands, which has filled the world.
Source: Catechetical Lectures (New Advent)