Upon learning that there was "Sun Nine-Pattern Gold said to be able to seal the source of evil spirits" hidden underneath Pearl Mountain Taoist Temple, Song Cheng did not immediately go and excavate, but instead took advantage of the daytime to seriously learn about the history of Pearl Mountain Taoist Temple through various channels.
The "Pearl" in Pearl Mountain Taoist Temple refers to the gem.
Plainly speaking, the mountain was rich in gold and gemstones, essentially a mine.
This mine had always belonged to a prominent merchant.
However, forty years ago, after the merchant's death, his descendants began fighting over the family wealth. The process is now unknown, but the victor in the end was the merchant's wife.
Using her vast fortune, she established Pearl Mountain Taoist Temple atop Pearl Mountain.