What is the relationship between Taoism and Yi-ology?

There are three kinds of Yi-ology: Zhouyi, Lianshan and Guizang. Taoist Yi-ology is divination and fortune-telling, and geomantic omen is the combination of the latter two. During the Eastern Han Dynasty, a man named Wei Boyang wrote a book called The Divine Power of Zhouyi, which was a collection of Zhouyi, Laozi and Zhuangzi. It was an authoritative work of Taoist immortal knowledge.