What are the fortune-telling methods of Zhouyi?

The idea of divination in the Book of Changes seems strange. Are other methods not based on the Book of Changes? In fact, the word "Book of Changes" here emphasizes that after divination, the basis for judging good or ill luck is the scripture of the Book of Changes (of course, the Book of Changes, which was later directly called the Book of Changes), that is, the words of divination and written words. According to the method of divination, it can be divided into two types: large number of Yan, that is, 50 yarrow is used for divination; The second is the well-known money divination, which uses three copper coins to calculate divination (of course, after divination with copper coins, you can also use six hexagrams or plum blossoms to explain the analysis, which is another matter). To use this method, you need to be very familiar with the hexagrams in the original Zhouyi, and at the same time be very skilled in the analogy of Yi Xiang in order to use it freely. The main concept of eight-character fortune telling and eight-character fortune telling is fate, or fate. In short, when a person is born, the arrangement and combination of heavenly stems and earthly branches (that is, eight characters) is fate. However, it is impossible to calculate good or bad luck only by eight branches. Therefore, heavenly stems and earthly branches has the attributes of yin and yang and five elements, and has the relationship of mutual development and mutual restriction. And derived from punishment, impulse, injury, combination and other relationships. In addition, combined with the four seasons and five directions, it is sunny day and night to piece together a fortune-telling system. The relationship between life and punishment is also called positive printing and partial printing, which hurts officials, eats gods, favors officials, is rich and partial, and plunders wealth, and is collectively called "Ten Gods". Fortune-telling can judge a person's fate by observing his appearance, bones or palm prints. This kind of fortune-telling method can only be carried out face to face, and generally it will not be carried out online, because the photos will be distorted. Another disadvantage of this fortune-telling method is that some fur fortune-tellers are easy to observe and interpret.