Dignity therapy was one of the first interventions developed for use in end-of-life care [3]. This modality aims to relieve psycho-emotional and existential distress to improve the experiences of patients with life-limiting illness. It offers patients the opportunity to reflect on what is important to them and on what they might want to communicate to loved ones [4]. In dignity therapy, patients are invited to reflect on and later discuss what aspects of their life they most want recorded and remembered—often referred to as their "legacy" [5]. The sessions are audiotaped and guided by a framework of questions (provided in advance) that facilitate disclosure of the patient's thoughts, feelings, and memories. The interview is then transcribed and printed for the patient's review and editing, as desired. Once finalized, the document is given to the patient, who may (or may not) share with friends and family, as desired. In addition to providing a tangible legacy for the patient, dignity therapy helps enhance the patient's sense of meaning and purpose, thus contributing to a preservation of the patient's dignity [1].

A 2011 study revealed that the items most commonly included in legacy documents were autobiographical information, lessons learned in life, defining roles (e.g., vocations, hobbies), accomplishments, character traits, unfinished business, overcoming challenges, and guidance for others [6]. Dignity therapy has been shown to positively affect patients' sense of generativity, meaning, and acceptance near the end of life. Positive impacts on families and caregivers of dignity therapy participants provide additional support for the clinical utility of this intervention [7]. However, dignity therapy is not for every patient with terminal illness. Despite the demonstrated beneficial effects, its ability to mitigate outright distress (e.g., depression, desire for death or suicidality) has yet to be proven [8]. Acknowledged limitations of dignity therapy include having adequate time, space, and means to engage in this intervention. Dignity therapy also cannot be used with patients who are nonverbal or unconscious or with those who have severe cognitive limitations [9]. Further studies are needed to determine whether patients with specific types of terminal illnesses (e.g., oncologic, cardiac, renal, pulmonary, neurologic) or in specific age cohorts (e.g., pediatric, adult, geriatric) benefit more or less significantly in certain domains (e.g., measures of spiritual distress, autonomy, death anxiety) [9].

Dignity therapy incorporates the concept of life review, which is the systematic and structured process of recalling past events and memories in an effort to find meaning and achieve resolution of one's life. It is conducted over four sessions in which patients chronologically review their childhood, adolescence, adulthood, and present situation. A health or mental health professional takes notes, but no other end product is produced [10]. Life review can be useful for patients of any age at the end of life [11]. Life review is typically structured around life themes (e.g., being a parent/grandparent, first job, life's work, important turning points) [12]. The process can be either reminiscent or evaluative. It also can teach or inform others and pass on knowledge and experience to a new generation. Life review conducted for therapeutic purposes can help patients cope with loss, guilt, conflict, or defeat and find meaning in their accomplishments [12]. In Western culture, life review may subsequently be shared with family or friends. For patients of other cultures, life review may be more communal and may involve rituals that are an important part of the dying process [13]. Few studies have evaluated therapeutic life review interventions, but preliminary results are promising [10].

Narrative practice is built on the assumption that people live multistoried lives. This perspective allows patients to shift from one life story to another to give meaning to their lives and shape their identities. A narrative approach frees the care team from the role of "expert" to the role of "helper" who facilitates patients' creation of personal stories of agency at times of life-limiting illness [14]. Narrative therapy is a practical psychotherapeutic process in which the professional and patient collaborate to deconstruct cultural and personal narratives that negatively affect the patient's sense of resources, efficacy, and identity. Together, clinician and patient discover and enrich positive, empowering, and helpful stories that originate in the patient's previous experiences [15]. Narrative therapy is patient-centered and goal-directed. Goals are to help patients improve their sense of self, separate problematic experiences away from their identity, and see themselves outside problems they may be facing. Narrative interventions can help patients and their families create new meaning of the patient's illness and end-of-life experiences [16].

The focus of traditional cognitive-behavioral therapy (CBT) is changing maladaptive thought patterns or perceptions that lead to mood disorders, such as anxiety and depression. But changing maladaptive thoughts to more realistic or positive ones does not always meet the needs of patients with life-limiting illness. These patients have very real fears about suffering and uncontrolled pain and other noxious symptoms, and their fears and thoughts are neither maladaptive nor unreasonable [21]. CBT adapted to end-of-life care can help patients identify "all-or-nothing" thinking and help them recognize that core parts of themselves remain unchanged [22].

Studies demonstrate that palliative care professionals have effectively applied CBT techniques to reduce mild-to-moderate anxiety or depression at the end of life and increase the patient's focus on the quality of remaining life [21,23,24]. For example, researchers incorporated elements of acceptance and commitment therapy (ACT) and dialectical behavior therapy (DBT). With ACT, patients learn to stop avoiding, denying, and struggling with their emotions. They instead learn to accept their emotions (and the source), accept their private circumstances, and not allow the circumstances to prevent them from moving forward in ways that serve their chosen values [25,26]. DBT includes a strong educational component designed to provide patients with the skills to manage intense emotions [27].

Meaning-centered group psychotherapy, based on the works of Viktor Frankl, was originally conceived as a group-based intervention for individuals with advanced cancer. Frankl's theory is existential in nature and postulates that the creation of meaning is a primary force of human motivation, even during times of great suffering [12]. The group therapy helps patients identify sources of meaning as a resource to sustain meaning, spiritual well-being, and purpose in the midst of suffering [1,12]. Meaning-centered psychotherapy was later adapted for use with individual patients [28]. The goals of meaning-centered psychotherapy are to provide support for patients to explore personal issues and feelings related to their illness; to help patients identify sources of meaning; and to help patients discover and maintain a sense of meaning in life, even as their illness progresses [1]. Randomized controlled trials conducted to date, totaling nearly 800 patients, have demonstrated support for meaning-centered psychotherapy in improving spiritual well-being and reducing psychological stress in patients at the end of life [29,30,31]. The extent to which the observed results can be attributed to the patient's changes in sense of meaning require further study [1]. Like dignity therapy, meaning-centered psychotherapy has fueled multiple adaptations to target unique clinical populations and settings (e.g., bereaved family members, caregivers) [32,33,34].

One of the most important therapeutic and compassionate aspects a health professional can offer is their presence. Listening to and allowing patients to express their end-of-life experience is healing and can be more comforting than guidance. One study investigated how palliative care chaplains work with patients at the point when it has been decided to cease active treatment, the point at which patients risk losing hope and falling into despair [39]. The author identified four types of presence in the chaplain-patient relationship that were a result of the chaplain's "being with the patient." Each type of presence (i.e., evocative, accompanying, comforting, hopeful) represented a discernible development in the chaplain/patient relationship—a theory of chaplain as hopeful presence [39].

Spiritual care is considered a basic tenet of palliative care and a responsibility of the entire end-of-life care team. Patients who receive good spiritual care report greater quality of life, better coping, and greater well-being, hope, optimism, and reduction of despair at the end of life. Despite these benefits, patients and caregivers often refuse spiritual care when offered. One study that sought to understand this reluctance focused on the effect of education. The authors reported that an educational intervention, which included explaining the services of hospice chaplains and the evidence-based benefits of spiritual support, led to greater patient/caregiver acceptance of spiritual care [48]. End-of-life counselors, therapists, and social workers are uniquely positioned to work with patients to explore the variables that they and their families use as guiding principles when making difficult decisions [49]. This requires assessing the patient's spiritual, religious, and existential needs (i.e., spiritual needs) to provide appropriate interventions [50].

Art and music therapists are becoming increasingly available to palliative care teams and are advancing the diverse and unique clinical services available to effectively meet the holistic needs of patients with serious illness [53]. Art can connect with deep psychological and physical pain, allowing the patient to find expression and relief. Studies have found that expressive arts (e.g., paint, clay, textiles, drawing) help patients more effectively deal with ambivalent emotions regarding life-death issues and communicate with their families about their feelings. It helps patients articulate their end-of-life journey beyond language [54,55].

Art therapy also may be helpful in reducing burnout among end-of-life care providers by enhancing their emotional awareness, fostering meaning-making, and promoting reflection on death. One study found significant reductions in exhaustion and death anxiety in end-of-life care providers who participated in an art therapy program [56].

Music therapy incorporates music chosen by the patient in consultation with a qualified music therapist. The music is often chosen to arouse specific emotions that allow the patient to more easily access, recall, and interrogate memories, with the goal of understanding the role those memories play in the patient's current circumstances [56]. Music therapy also may be an effective adjuvant to pain management therapy [56].