by 
The use of validation is so powerful, yet so simple. Sometimes people ask, “Is that all I have to do?” They noticed that they just had to be present with the other person and show that they understood. They did not have to do anything with that information.
Psychologists have observed that one of the most primitive and basic human needs is to be accepted and to be understood. Historically, survival depended on being included in the tribe. People need to feel safe in the proximity of others, which occurs through connection and belonging.
Validation provides this connection and belonging for the other person. Their thoughts, feelings, and experience are accepted as true and valid for them. The primal need for inclusion and safety is met through the act of validation.
Because validation touches a core human need for acceptance, its use can de-escalate an angry person. A potentially violent situation can be averted through the simple process of listening and understanding. Sometimes it is almost magical to watch someone calm down as soon as they are understood and accepted.