Old traditional books are difficult to learn and difficult to understand. I recommend you a book called "The True Path to Four-Pillar Forecasting". This book closely adheres to the true meaning of life and death, abolishes the evil spirit (killing), and leads to simplicity.
There is no need for Feiyuan, Xiaoyun and Life Palace, just use the Great Luck and the passage of time to determine good or bad luck. There is no need for earthly branches and hidden stems, and destiny can be determined directly by the heavenly stems and earthly branches. There is no need to use the Five Elements of Nayin, just use the Five Elements of Ben, which is very intuitive and accurate. Instead of using the "virtual reality theory", "hundred gods theory" and "anti-judgment theory" of modern teachers, there have been great breakthroughs and improvements in functional relationships and prediction methods. It is simpler and clearer. You only need to master the relationship between the five elements of good luck, fleeting time and fate, and you can accurately predict all aspects of life, good and bad fortune. It is a treasure book for professional traders to improve their skills.