[1] Wang Yu himself was said to be well-studied in the worshipping of gods and spirits and particularly paid attention to the proper times to offer sacrifices.
At Wang's suggestion, Emperor Suzong built an altar dedicated to the god Taiyi (太一 or 太乙) to the south of Chang'an.
Wang thus suggested that a group of witches and eunuchs be commissioned to go to various mountains and rivers of the empire to pray for Emperor Suzong.
One of them, who was sent to Huang Prefecture (黃州, in modern Wuhan, Hubei), took an entourage of several tens of young hoodlums with her and stayed at the station for imperial messengers with them.
When the prefect of Huang Prefecture, Zuo Zhen (左震), visited in the morning, he found the station door locked.
In 759, indeed, pursuant to Wang's suggestions, he personally offered sacrifices to the gods of the nine palaces (九宮神, Jiugong Shen).