The principle of Yijing regimen is a bit mysterious, and there are routines to follow from the five elements to various methods (using images) to implementation. It conforms to the laws of nature, but this Yijing regimen should be thousands of people, and everyone is different. Almost, so to speak. Slightly different. As for the derailment you said, it depends on the effect. Yiyi focuses on the effect of conditioning.