Anyone who wanted to dig it up had to do so at night,
because during the day there was the danger of a woodpecker poking out your eyes.
But there were also other superstitious customs. For example, when you had dental problems,
you wore chains made of peony seeds around your neck. Also,
the smoke from the seeds was used to heal «possessed persons».
After all, peonies are still grown in China today to obtain Mu Dan Pi, an important substance in Chinese medicine.