Eustathius continues his commentary by explaining that the prostitute in Proverbs signifies evil desire, which overwhelms the mind like a pilot in a storm and drives it toward wicked action.
Not only has it been said concerning a prostitute, but also concerning evil desire. For when the mind sets itself toward wicked action, then the heart meditates the crooked things which the mouth speaks. For then the mind will be as in the heart of the sea, by the brine of its many thoughts.