Wu used fortune telling to calculate divination.

In "Wu Yongzhi Earns Jade Kirin and Zhang Shun Nights the Jinsha River", Wu Yong pretends to be a fortune teller to tell Lu Junyi's fortune, and tells four divination songs written by Lu Junyi on the wall-there is a boat on the Luhuatan, and Jie Jun swims alone at dusk. Righteousness is always life, so don't worry about running away. This is a Tibetan poem. Connecting the first sentences of the four poems together is "Lu Junyi rebelled", which is a trap set by Wu Yong. Later, Coulee reported this poem as evidence, framed Lu Junyi and sought Lu Junyi's fortune.