by Himuro » Fri Feb 20, 2015 12:51 pm
Pretty positive that her family has done this for the emperor in the past, and now because there's no emperor, they just protect their stuff and use the caverns for other things. It's similar to my town and oil. My hometown is a hallmark and very important town for oil production. No longer, but it still carries that pride and even used to have a water fountain where oil used to be drilled. Because there is no longer an emperor to demand the mirrors be made does not mean the family who made mirrors as their craft and family tradition (remember this is Asia and tradition and family are important) decided to stop making mirrors simply because the emperor stopped asking for them. Logic dictates that like any family business or craft, they'll still keep doing it, if only to make use of the crystals in the caves for sale.
the most likely reasoning is that the mirrors are antiques from Guilin and Shenhua is merely an example of someone whose ancestors who have passed down making the mirrors through the ages.
Or, she's a ghost.