It's even harder for Peng Zu to guard against its disunion if he doesn't wade in water, and it's even harder to go to bed if he doesn't eat dogs. What does that mean?

Hello, every day is made up of heavenly stems and earthly branches. "Benevolence" is a heavenly stem, and "noon" is a territorial branch.

"It is more difficult to guard against not drawing water" means that "on the day when you don't draw water from the well, there will be accidents;

Don't eat dog meat at noon (19-2 1) or you will easily get into trouble in bed.