This study will determine the feasibility of a virtual Tai Chi Easy (vTCE) intervention for adults with opioid use disorder (OUD), chronic pain (CP), and anxiety. OUD is a public health crisis that causes more than 130 deaths daily, costs over $78 billion annually, and disproportionately affects persons with CP and anxiety. CP and anxiety are important contributors to treatment discontinuation and relapse. Interventions that treat the overlapping symptoms of OUD, anxiety, and CP, concurrently, may improve OUD outcomes. Medication Assisted Treatment (MAT) (e.g., Suboxone) is the most common intervention for OUD; yet MAT is underutilized and approximately 50% of people discontinue treatment prematurely or relapse. There is a small but growing body of literature demonstrating that mind-body therapies (e.g., mindfulness, acupuncture, Tai Chi) help improve opioid use, anxiety, pain, self-efficacy, stress, and quality of life. Unique to other mind-body therapies, Tai Chi Easy (TCE) is multi-component mind-body therapy including: 1) Gentle movement, 2) Breath practice, 3) Self-massage, and 4) Meditation. However, the feasibility of vTCE to ameliorate anxiety and CP symptoms among individuals with OUD is not known. This pilot study addresses this gap by examining the feasibility of a vTCE intervention for OUD, CP, and anxiety. A pre-post single-group quasi-experimental design of adults (N=20) with OUD, CP, and anxiety will be recruited from a substance use treatment facility in California. Aim 1, determine the feasibility of an 8-week/16-session, vTCE intervention for adults with OUD, CP, and anxiety using the following benchmarks: a) recruit 20 adults within 2 months, b) at least 75% study retention, c) 80% of data collected, d) at least 80% adherence to vTCE, e) an average rating of 4.0 on intervention acceptability, appropriateness, and feasibility (i.e., three valid 4-item measures, 5-point Likert scale), and f) 0% safety or injury issues during vTCE classes. Aim 2, determine the perceptions of vTCE intervention by conducting a focus group (FG) interview post-vTCE. FG participants (n=8-10) will generate feedback on the vTCE intervention. Aim 3: Explore within-subject changes in generalized anxiety, chronic pain intensity, opioid use, opioid cravings, and basic psychological needs post-vTCE. Exploratory outcome measures will be collected via REDCap at two intervals (pre-vTCE/Week 0) and (post-vTCE/Week 9). Self-report exploratory measures will be collected using the General Anxiety Disorder (GAD-7), chronic pain intensity (GCPS), opioid cravings (OC-VAS scale), and Basic Psychological Needs Satisfaction (BPNS). Changes in opioid use will be collected via urinalysis with a biomarker of opioid use from the outpatient clinic and reported to the principal investigator. A new holistic theoretical framework (Complexity of Opioid Use Disorder Model) will guide this project. Quantitative data will be analyzed using linear regression and Crist and Tanner's five interpretive phases will be used to analyze qualitative data. Results from this study will provide a foundation for conducting a randomized controlled feasibility trial to test vTCE for individuals with OUD, anxiety, and CP.