Introduction to Shi Gan Dang: Stone Gan Dang stands in the streets and lanes. It is an ancient superstitious object to restrain road rush and exorcise evil spirits. In particular, the words "Shi Gandang" or "Taishan Shi Gandang" are engraved on the wall at the intersection, which is called the "unlucky position". The stone Gandang placed in Jiuqu Lane in Lukang also has the functions of stopping evil spirits, avoiding evil and attracting good fortune. This stone was originally erected on the ground. When the subsequent owner renovated the house, he dug it up from the ground and built it on the brick wall of the alleyway, thus becoming what it is today.