Magicians trick people with their magic tricks. They ask questions in a certain manner. They do things in a certain way.
Everyone falls for their tricks unless the person knows what is going on.
This alone shows how susceptible the brain is. Your brain has back doors. Today, we live in a world where businesses and marketers are out to maximize profit.
They will use every psychological trick in the book to get you to pay them and make them rich.
Here is a short video
which shows you how dangerous all of this is. Please know that there is music in the very beginning of the video for a few seconds. Please do skip that.