Therefore, fate exists objectively, and feng shui and eight characters are mathematical functions to calculate fate. Geomantic omen is the geographical environment, and the constellation is the astronomical environment. Both feng shui and eight characters have included a person's report, but what is reported is not unique, and what is reported is positive, so feng shui and eight characters can calculate a person's fate.
If there is no accurate date of birth, we can only infer from the acquired geomantic omen, that is, the inside and outside of the acquired living environment, or infer the innate geomantic omen from the owner's own hands and then predict the acquired geomantic omen.
In other words, the prediction of the Book of Changes is just a reference, giving us a data point of view and not going in the wrong direction. In normal life, as long as you don't violate social common sense and do things that violate social morality, you often have the heart to help others, and natural good luck will follow.