The most basic of basic concept in psychotherapy is to carefully listen to the patients'words. Asking open questions is one of the most effective and efficient methods for intensive listening. Open questions are questions that are not supposed to be answered with "yes" or "no". By having conversation using these open questions, psychiatrists or therapists intensively listen to and focus on the patients to try to understand more about them. At the same time, the psychiatrists or therapists help the patients open up their mind to think deeply and realize something new. Through this technique, psychiatrists can enhance their ability.
 Social constructionism is a theory of knowledge in sociology. It centers on the notion that reality is created in the minds of people (in other words, in their feelings and consciousness), but does not exist apart from them. This idea has been adapted to family therapy since the 1990's, and has since been applied to individual therapy. In psychotherapy based on social constructionism, open questions are actively used. Open questions deepen therapeutic conversation and make it more natural. They often bring long-lasting, beneficial effects even after therapy. However, asking too many prying questions can be harmful. Thus, psychiatrists or therapists should be careful about it. The same question can be either a question to get information or a question that leads the patients to open up their mind to think and realize something new. The nature of a question is not determined by the words or phrases used, but by the intention of the psychiatrists or therapists.
 In addition, in the text, the achievements of pioneers are introduced based on my own experiences.
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