Sensibility is the source of all desires, and imagination determines their direction.All living beings who can perceive relationship will be disturbed whenever the relationship changes.He imagines or fantasizes about other relationships when he feels that they are more suitable to his nature.To transform the desires of limited creatures into evil and wrong imaginations, even angels may change in this way as long as they have desires.Therefore, people must know all human nature in order to find the most suitable relationship.How to use lust?One is that human beings also need to understand the real relationship between people from the individual, and the other is to control all emotions based on these relationships.