Various theories of psychotherapy have developed their individual concepts of psychotherapy to relieve the suffering of individuals. However, the key to each theory is mindfulness training, such as mindfulness-based stress reduction (MBSR), which is intertwined within each theory. An understanding of the term and nature of suffering is addressed to demonstrate the interrelationship of psychotherapy theories and mindfulness. The concept and a brief history of mindfulness in psychotherapy demonstrates how mindfulness has been a concept in the development of psychotherapy. The implementation of Eastern philosophical techniques has risen question into the effectiveness of mindfulness training in regards to the lack of diagnosis in the Eastern philosophy
