What are the numerology?

There are many different tools in numerology, such as China's eight characters and Chinese characters, foreign western astrology, Indian astrology and so on.

There are many other tools (such as the Book of Changes, Liu Ren, the number of plum blossoms, and iron plate divination, but they are not within the scope of calculating fate), but all of the above are based on calculating good or bad luck in life, and each has its own advantages.