There are six hexagrams in the Book of Changes, and there are also some words on the Internet, such as the official ghost fire, children and grandchildren are not in the soil and so on. And how can I

There are six hexagrams in the Book of Changes, and there are also some words on the Internet, such as the official ghost fire, children and grandchildren are not in the soil and so on. And how can I occupy these by myself? First of all, you should learn the basics. First of all, you should be familiar with heavenly stems and earthly branches's Yin-Yang, Five Elements and their relationship between birth and grams. Then, you have to learn six gossip and ten-day skills: A, B, C, D, E, G, Xin and Ren, where A and B belong to five elements, C, E, G, Xin and Ren, and twelve branches: Zi Chou, Yin Mao, Tatsumi, Shen You, Qi Hai at noon, and so on. There are very simple books in it.