When I was twenty-three years old, I got into the funeral business by driving and running errands, and made a living with a Feng Shui master with a weird temper and many rules.
He said that this business is not afraid of ghosts, but is afraid of "bad people's hearts, bad terrain, and karma."
I thought I was just doing things for dead people, but later I discovered that some things were not "dead" but were suppressed with soil, water, and thresholds.
I sorted out the lists I had run with my master in the past few years. I wrote down everything I could write down. If I couldn't write down, just pretend I had never met him.