If this well is useless and has been idle, then this well
It must be full of yin and be suitable for ghosts and gods to live in. If ghosts really exist,
That may have an impact on your feng shui.
There is no scientific method to verify whether there is a ghost, no.
Don't worry if you can swallow the well. As for other secret methods,
This is between us. It's designed to deal with ghosts, but if it does happen,
For evil spirits, the other party may retaliate.