If you do something wrong, you can't change it after doing it, and you can't let it go for a long time. You must find a reasonable reason to get rid of it. For example, a group of swindlers came to the village and sold far-infrared pants for health magnetic therapy at high prices. Many people have been cheated. In the reaction afterwards, many people discussed how the efficacy of pants changed the sub-health state of the body overnight. When they know that they have been cheated, they are also deceiving themselves.
Some people can't do things, in order to motivate themselves, increase their courage and confidence, and constantly remind themselves that "I can do it", in the eyes of discerning people. This is self-suggestion.
When love is lost, many people will wait, thinking that she (he) will come back to relive the lost dream. The ethereal hope also makes people look forward to miracles.