This works because of an concept referred to in NLP as an anchor. It’s the same principle as Pavlov ringing the bell and feeding the dog. The dog’s neurology links the bell to being fed then automatically causes the dog to salivate when it hears the sound of the bell. The belief that food is coming triggers involuntary responses. This approach could lead to a large variety of entertainment and medical applications.
This also proves some points about how media, especially video games, influences behavior. Linking positive feeling of winning a game to doing destructive actions like killing people is very harmful.
This is literally mind control. You can use it to help control your own mind or others can use it against your will. Subliminal advertising has used this for decades. It touches on the powerful placebo and nocebo effects. It’s crucial to education and personal achievement plus relationships. This is a field I’ve been studying for 10 years and see many areas of innovation.