Sunday class book

The book Sun Rilei has the following explanation for this problem: Thanks to Ji Fangshu.

1, Xie Fangshu 2, Xiang Jitong Shu 3, Yao Hui 4, Chongzheng Pen Material 5, Buwanyu Sagger 6, Yongning 7, Operation and Examples of Japanese Studies 8, Textual Research on Imperial Ephemeris.

2, the five elements choose the day to learn the Tibetan scriptures.

The five elements choose to study in Japan, and the collection is elegant and mysterious.

Kong Xuan is an easy word to learn. The chapter on Metaphysics in Shen Shi's Metaphysics explains the meaning of Metaphysics as follows: "It is the word Metaphysics, which means that one to nine are natural, and one to nine are uncertain, and there are complicated understandings, so the word Metaphysics is used instead." It means: Kong Xuan stands for the number 1 to 9, because 1 to 9 is not arranged according to the regulations, but there are many changes, so it is replaced by Kong Xuan. Kong Xuan is mainly used for geomantic omen, so there is a school of geomantic omen called Kong Xuan Geomantic omen.