The article discusses the importance of core values and principles in Acceptance and Commitment Therapy (ACT) and Mindfulness-Based Stress Reduction (MBSR). ACT is based on six core principles, including acceptance, mindfulness, and committed action, which helps individuals identify their values and translate them into specific behavioral goals. MBSR, introduced by Jon Kabat-Zinn, focuses on mindfulness and meditation to reduce stress and anxiety. The article highlights the effectiveness of both approaches in treating various psychological health problems, such as depression, anxiety, and post-traumatic stress disorder (PTSD). It also emphasizes the importance of self-awareness, present-moment focus, and values-based action in achieving personal growth and well-being.