Meditation Effects on Discomfort, Pain InTerference, and AnxieTy After urEteroscopy

The goal of this pilot clinical trial is to learn whether meditation can help improve recovery in children and adults having surgery for kidney stones. The main questions it aims to answer are: * Does meditation around the time of surgery improve pain and anxiety in patients undergoing kidney stone surgery (ureteroscopy)? * Is a meditation program around the time of surgery feasible for patients having kidney stone surgery (ureteroscopy)? Participants will be randomly assigned to the meditation group and the control group to understand how meditation affects recovery after surgery. Participants will be asked to: * Complete a health history form * Complete questionnaires about pain and mood before surgery and certain days after surgery * Those in the meditation group will learn and practice a daily 20-minute meditation for 2-4 weeks before surgery and 2 weeks after surgery * Those in the meditation group will be asked to provide feedback of the meditation program after completing the last questionnaire