What does Taiwan Province people mean by "Dongzhi"?

The "East Branch" mentioned by Taiwan Province people is to play the role of "Jitong" possessed by gods (the medium between gods, people and ghosts). Fu Ying, a divination method of Taoism in China, is also called Fu Ji, Fu Luan, Hui Luan, lowering the pen, inviting immortals, Bu Zigu and Jia Yi. In Fu Ying, someone needs to play a role possessed by a god. Such people are called children, children or bodies. The gods will possess themselves and write some handwriting to convey their thoughts and make oracles. In this way, believers communicate with the gods and understand their meaning.