What do O and◇mean in Daoism?

O stands for empty death; ◇ or △ means Ma Xing.

In Taoist magic, people pay attention to singularity, door and avoiding armor, that is, hiding. Therefore, under six instruments, Jia Zi hides E, Jia Xu hides himself, Geng, Xin and Ren, and Jia Yin hides Gui. For Liu Jia, each piece of armor has a history of ten years and sixty years.

There are ten branches in China and twelve branches on the earth. Starting from the first group of Jiazi, ten branches and twelve branches are combined into sixty Jiazi, which are Jiazi, Ebou, Bingyin ... Gui You; At this time, the heavenly stems are gone, and there are two branches, so the two branches of this group are empty, also called Liujia Xuankong, Jiazi is empty on the 10th, and JOE is empty on the 10th ... Jiayin is ugly on the 10th;

On the other hand, Ma Xing is a trinity based on the twelve branches of the earth, while Ma Linxing usually indicates that there is a moving image. Ma Xing is defined as finding one third of the six red positions, for example, Shen Shi, and then finding the Shen Zi in the hedging position, that is, Yin, that is, Shen Zi, Ma Xing is in Yin, and so on.

I hope I can help you.