Are ghosts really haunting people?

The saying that the spirit of hatred is the soul of the dead and reappears in the world as it did before death.

It is said that people who hold grudges, people who have unfinished wishes and unfinished destiny before their death, or people who die tragically without revenge will become ghosts.

The spirit of hatred usually has no fixed form and is generally invisible to the naked eye. Only certain people, such as relatives of the deceased, enemies or people with yin and yang eyes, can see it.