Having nightmares, being bitten by ghosts and scratching your chest will explain your dreams.

According to the viewpoint of modern psychology, "dreaming of ghosts" actually means that people have found danger or crisis around them subconsciously. Of course, this kind of danger or crisis is not necessarily life-threatening, but may be a crisis of trust, emotion and interpersonal relationship from family or society. Because human beings have a natural fear of ghosts and death since ancient times, when the subconscious finds a crisis around them, it will unconsciously describe this crisis as "ghosts" or death in a dream.