How about mysterious divination?

Metaphysics divination is an important branch of Metaphysics. Kong Xuan's divination is simpler than Kong Xuan's in Shen Shi.

Xuantian Dabu is also called Xuantian Dabu, and some people call it Xuantian Yibu. In geomantic omen, Kong Xuan School has its own system, from Jiang Dahong and Zhang Zhongshan to Shen Zhu. Kong Xuan's geomantic omen is divided into Kong Xuan Feixing and Kong Xuanda. Although they are collectively called "Kong Xuan", they are self-contained. The flying stars in the sky talk about good or bad luck in terms of orientation, and the big hexagrams in the sky talk about good or bad luck in terms of hexagrams. Xuantianda Gua is a supplement and sublimation to Xuantianfeixing Fengshui, which divides 15 into 64 Gua lines and 384 Gua lines. The game of "Flying Stars in the Sky" is a game of making money by cleverly shifting divination.

Kong Xuan's geomantic technique of divination consists of two parts: geomantic omen and choosing a date. Kong Xuan's choice of auspicious days is an abstruse study of choosing dates. Not many people know Kong Xuan's hexagrams, because Kong Xuan's hexagrams were generally kept secret in ancient times. Even the selection of apprentices is very strict, and most apprentices are dictated by the master. After the disciple learned about it, the teacher also forbade him to reveal the secret. Therefore, there are naturally not many people who know how to choose a day.