The ancients engaged in geomantic omen, all of which had a bumpy fate, so geomantic omen was called three religions and nine streams.
It is enough to have a certain understanding. After learning, you will inevitably come into contact with the knowledge of ghosts and gods.
However, with the foundation and methods, I am not afraid in the later stage.
But it is not recommended to spend all your energy on learning this.
What you get, you lose. Many students of Feng Shui will be rewarded, because it is against the laws of nature.