Is the influence of Feng Shui included and displayed in the eight characters, or is it independent of the eight characters and can influence and change the original eight characters?

Feng shui is independent of the eight characters, but the feng shui at birth must be included in the eight characters, which can be inferred. Feng shui can certainly affect the luck of the eight characters, just like saying that one of the same eight characters lives in a dark and humid environment and the other lives in a normal environment, then the result must be that the dark and humid people have a bad fate.