The dialogue between Taoist priests, monks and lay people is mostly to persuade goodness, accumulate virtue and practice. I won't mention the practice. You don't understand jargon and technical terms. The rest of the common sense is not so difficult to understand, but they add Buddhist scriptures and Daoism, so you can't understand them all.
Buddhism and Taoism quoted many ancient books, basically promoting good and punishing evil. If you haven't read these ancient books, it's normal not to understand them.