How do ghosts in the spirit world and geomantic omen judge whether there is a spirit world in this house?

1. If a person enters a room and suddenly feels cold, or feels uncomfortable all over, he will feel fear and panic;

2. If the child really cries;

3. Take a puppy and bite it in the house;

4. Burn incense in the house and put meat next to it to see if the cigarette suddenly falls to the meat.

5. Others are only tested by professional Yin and Yang teachers.