Psychical stabilization associated with distinct mind–body interventions could be attributed to both an increase of mindfulness and inner correspondence with practices. In a cross-sectional survey among 191 yoga practitioners, we investigated associations of Inner Correspondence and Peaceful Harmony (ICPH) with mindfulness, spirituality, mental health, and well-being. Regression analyses indicated that ICPH can be predicted best by Religious Orientation and Lightheartedness/Relief (LHR), and weakly by positive mood and mindfulness. In contrast, the predictors of mindfulness exerted relatively weak influence (with life satisfaction and conscious interactions as the strongest influencing variables). Because mindfulness can be trained, one would expect an influence on mental health and well-being with ICPH and LHR as relevant contributors.