This chapter continues to deal in the internal sense with the vastation of those steeped in falsities who molest the upright in the next life. The first two stages of vastation were described in the previous chapter, and also the third stage partly, a stage in which they did nothing else than use reasonings arising from utter falsities - reasonings arising from utter falsities being meant by the frogs. This chapter continues to deal with these, and then goes on to deal with the fourth and fifth stages of the vastation of those steeped in falsities who molest the upright in the next life. The fourth stage was when they were subjected to evils which ruined all good present with them, including whatever natural good they had - these evils being meant by the lice produced from the dust of the land. The fifth stage was when they were subjected to the falsities arising from those evils, which ruined all truth - these falsities being meant by the noxious flying insects.