The Effect of Mindfulness Training on Postoperative Pain - A Solomon Four Group Design

The goal of this clinical trial is to learn if mindfulness education works to reduce pain after inguinal hernia operation in adults. The main questions it aims to answer are: Does mindfulness education reduce the pain level after inguinal hernia operation? Does mindfulness education reduce the pain intrusion level after inguinal hernia operation? Does mindfulness education reduce the fear of pain level after inguinal hernia operation? Participants will: Pain level, pain intrusion and fear of pain levels will be determined 24 hours before surgery. Awareness training will be given before surgery. Pain level, pain intrusion and fear of pain levels will be determined 24 hours after surgery.